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. Author manuscript; available in PMC: 2016 Oct 26.
Published in final edited form as: Vaccine. 2015 Sep 25;33(43):5801–5808. doi: 10.1016/j.vaccine.2015.09.014

Medicaid provider reimbursement policy for adult immunizations

Alexandra M Stewart a,*, Megan C Lindley b, Marisa A Cox c
PMCID: PMC4720160  NIHMSID: NIHMS745776  PMID: 26403369

Abstract

Background

State Medicaid programs establish provider reimbursement policy for adult immunizations based on: costs, private insurance payments, and percentage of Medicare payments for equivalent services. Each program determines provider eligibility, payment amount, and permissible settings for administration. Total reimbursement consists of different combinations of Current Procedural Terminology codes: vaccine, vaccine administration, and visit.

Objective

Determine how Medicaid programs in the 50 states and the District of Columbia approach provider reimbursement for adult immunizations.

Design

Observational analysis using document review and a survey.

Setting and participants

Medicaid administrators in 50 states and the District of Columbia.

Measurements

Whether fee-for-service programs reimburse providers for: vaccines; their administration; and/or office visits when provided to adult enrollees. We assessed whether adult vaccination services are reimbursed when administered by a wide range of providers in a wide range of settings.

Results

Medicaid programs use one of 4 payment methods for adults: (1) a vaccine and an administration code; (2) a vaccine and visit code; (3) a vaccine code; and (4) a vaccine, visit, and administration code.

Limitations

Study results do not reflect any changes related to implementation of national health reform. Nine of fifty one programs did not respond to the survey or declined to participate, limiting the information available to researchers.

Conclusions

Medicaid reimbursement policy for adult vaccines impacts provider participation and enrollee access and uptake. While programs have generally increased reimbursement levels since 2003, each program could assess whether current policies reflect the most effective approach to encourage providers to increase vaccination services.

Keywords: Adult vaccination, Immunizations, Medicaid, Provider reimbursement

1. Introduction

Medicaid reimburses medical and health professionals for providing comprehensive services to low-income beneficiaries in every state, the District of Columbia, and five U.S. territories [1]. With approximately 22 million adult enrollees, representing 12% of all American adults, Medicaid is the largest public funder of health services in the country [2]. Enrollment is expected to increase to 31 million adults by 2017 [3]. Medicaid policy related to vaccinations for adults impacts both enrollees’ personal health status as well as the public’s health.

The federal government provides direction to states regarding minimum program requirements. Programs must follow these requirements to maintain eligibility for federal financial support. Programs must “assure that payments are consistent with efficiency, economy and quality of care and are sufficient to enlist enough providers so that care and services are available. at least to the extent that such care and services are available to the general population in the geographic area.” [4] However, programs may establish provider reimbursement policy. Studies show that inadequate reimbursement negatively impacts Medicaid’s ability to attract providers to vaccinate adults. This is noteworthy because uptake for adult vaccines remains below national goals [5,6].

Payment rates are based on: (1) the costs of providing the service, (2) the amount private insurers pay, and (3) a percentage of the amount Medicare pays for equivalent services [7]. States wishing to change existing reimbursement policy must submit a State Plan Amendment (SPA) for approval by the Centers for Medicare and Medicaid Services (CMS) and issue a public notice before the amendment’s effective date [7].

For adult immunization services, programs determine providers eligible to receive reimbursement, the payment amount, and settings where vaccines may be administered. Programs design total reimbursement for adult immunizations using different combinations of three categories of Current Procedural Terminology (CPT) codes. The codes are developed and maintained by the American Medical Association to provide a standardized method of describing medical services [8]: (1) vaccine (22 codes), (2) vaccine administration (5 codes), and (3) provider visit (6 codes). The vaccine code is always a component of the reimbursement, while administration and/or visit codes are not. Because there are multiple formulations of some adult vaccines, vaccines may have multiple CPT codes: for example, there are six CPT codes for adult influenza vaccines.

Our study determined how Medicaid programs in the 50 states and the District of Columbia approach provider reimbursement for immunizations furnished to adult enrollees. We assessed policies related to vaccine reimbursement, their administration, eligible providers, and permissible settings.

2. Methods

Our study was completed between October 2011 and September 2012. We conducted a document review and developed and administered a survey assessing provider reimbursement policy for Medicaid fee-for-service programs. The document review updated a 2003 study of Medicaid reimbursement policy [9]; we compared results of this review to the 2003 findings.

2.1. Document review

From October 2011 through March 2012, using a standard internet search engine, we identified relevant documents using search terms: “Medicaid fee schedule,” “Medicaid physician visit cost-sharing” and “adult Medicaid immunization or vaccination.” The search yielded publicly available materials from all programs (50 states and the District of Columbia) including: state-issued provider manuals, physician bulletins and newsletters, consumer handbooks, fee schedules, state plan summaries, and vaccine, administration and visit CPT codes.

2.2. Survey population

Medicaid administrators were asked to complete a survey and verify document review results. Forty-two (82.4%) of 51 programs responded to the survey. Nine programs either did not respond or actively declined to participate (Illinois, Kansas, New Hampshire, North Carolina, Ohio, Pennsylvania, Rhode Island, West Virginia, and Wisconsin).

2.3. Survey design and administration

The survey was developed in collaboration with the National Center for Immunization & Respiratory Diseases’ (NCIRD) Immunization Services Division (ISD) of the Centers for Disease Control and Prevention (CDC). The study was exempt from review in accordance with The George Washington University Institutional Review Board (IRB) guidelines. The survey was disseminated using Survey Monkey, an online survey tool.

On March 14, 2012, each Medicaid director was emailed an introductory letter along with study materials and instructions. Administrators were asked to (1) identify and/or verify reimbursement rates for individual vaccines found in the 2012 document review; and (2) respond to the 2012 survey about adult immunization reimbursement. Questions addressed vaccines and their administration among different categories of providers in various settings. Throughout the survey period, project staff was available to discuss the data via phone or e-mail and to clarify any discrepancies between the document review and survey results.

Between March 18, 2012 and September 28, 2012, participants submitted completed surveys via e-mail, facsimile or online. Between April 2, 2012 and September 5, 2012, we conducted follow-up activities, including bi-weekly e-mails and phone calls or as necessary to those who had not submitted a survey.

2.4. Medicaid reimbursement of vaccination services

Each program’s policies were reviewed against three elements of vaccination reimbursement developed for this project and compared to data from the 2003 study. The elements represent core practices that could promote optimal provider participation and increased access to recommended vaccinations for adult Medicaid enrollees, including whether the program permits reimbursement of: (1) vaccines, their administration, and/or office visits when provided to adult enrollees; (2) adult vaccination services administered by a wide range of providers; and (3) adult vaccination services administered in a wide range of settings.

3. Results

3.1. Medicaid reimbursement for adult vaccines

3.1.1. Vaccine reimbursement (Table 1)

Table 1.

Medicaid adult vaccine reimbursement rates ($) (n = 50a).

Program FLU
PNEUMO TD
TDAP
90654 90656 90658 90660 90661 90662 90732 90714 90718 90715
Alabama 10.80 65.77 17.05 37.60
Alaska 16.74 8.00 40.10
Arizona Managed care Medicaid program (not FFS)
Arkansas 13.12 12.06 18.40 13.80 12.34 14.00 7.61 28.80
California 31.46 13.76 22.27 32.96 56.69 9.00 13.96 48.45
Colorado 17.44 13.74 74.83 50.53 28.24 95.35
Connecticut 16.57 21.18 21.18 AWP-16% 29.21 27.03 18.87 18.95 33.20
Delaware MP – All adult vaccine reimbursement rates are currently manually priced
D Cl. COV $14.56 55.20 13.51 7.25 1.60
Georgia 12.38 18.50
Hawai’i 4.00 4.00 4.00 4.00 4.00 4.00 4.00
Idaho 11.14 13.22 20.08 44.76 17.13 20.54 33.49
Illinois 18.38 11.19 11.19 22.37 14.60 18.92 2.70 38.28
Indiana 10.74 7.43 19.90 27.83 60.58 20.63 17.57 39.56
Iowa 12.79 28.63 23.00 39.85 6.31 39.85
Kansas 26.48 20.16 16.31 30.92 65.00 21.20 20.98 41.61
Kentucky 18.40 18.40 29.14 18.62 18.40 18.40 18.40
Louisiana 18.38 17.37 13.22 22.03 29.73 2.42 (no CPT)
Maine 12.38 11.37 22.32 57.19 19.51 17.99 41.26
Maryland 12.54 11.37 22.32 37.61 20.12 18.47 33.17
Massachusetts IC 12.54 11.37 22.32 IC IC 43.25 20.66 15.87 33.81
Michigan 18.98 12.38 11.37 22.32 29.21 65.77 19.09 17.05 37.60
Minnesota 12.37 11.36 22.31 UK UK UK UK
Mississippi 18.98 12.38 11.37 22.00 65.77
Missouri 6.75 12.82 20.84 5.00 14.99 20.63 20.63
Montana 11.07 12.10 19.97 51.17 19.09 17.85 41.15
Nebraska 17.14 13.81 11.22 26.08 19.14 19.14 41.22
Nevada 62% Usual/Cust. Charges 11.12 7.69 8.31 35.65
N. Hampshire MP 13.68 5.38 57.50 19.01 19.01 16.50 22.50 2.00 46.23
N. Jersey 20.64 17.56 25.69 BR 32.50 35.76 26.05 17.50 47.25
N. Mexico 18.98 12.38 11.37 22.32 30.92 65.77 19.92 17.05 37.60
N. York INC – All adult vaccine reimbursement rates are based on the acquisition cost
N. Carolina 16.75 12.74 21.24 31.53 19.25 UK 39.49
N. Dakota 14.00 11.34 22.32 57.19 18.74 23.62 41.15
Ohio 18.19 13.21 22.31 37.60 19.79 19.80 34.91
Oklahoma 11.97 21.59 29.92 55.34 18.47 17.27 39.81
Oregon 12.38 13.25 22.32 65.77 19.92 17.05 37.60
Pennsylvania 10.00 10.00 10.00 10.00 10.00 10.00 10.00
R. Island UK UK UK 49.73 UK 37.21
S. Carolina 90658a 49.36
S. Dakota 10.56 9.00 9.00
Tennessee 100% Managed Care (no fee-for-service). All ACIP-recommended vaccines are covered, but reimbursement varies.
Texas 14.15 13.87 11.57 49.64 18.37 18.37 33.13
Utah 13.52 11.10 14.49 19.70 COV 28.69 19.19 13.10 34.88
Vermont 9.75 8.89 11.36 18.62 11.80 14.99 28% PAC 1
Virginia 18.20 13.22 13.22 IC IC 106.49 19.14 17.50 36.25
Washington 12.38 13.23 22.32 57.19 19.51 17.99 41.26
W. Virginia Data unavailable – fee schedule does not show reimbursement rates.
Wisconsin 3.31 $3.31 $3.31 20.22 3.31 3.31 3.31
Wyoming If it is from state-supplied vaccine, $0.00. If it is from a private stock, invoice cost.
Program HEP A HEP A.B HEP B
MMR MENING
HPV
VAR ZOS
90632 90636 90740 90746 90747 90707 90733 90734 90649 90650 90716 90736
Alabama 119.42 59.71 119.42 43.10 108.49 93.05 164.73
Alaska 71.07 188.43 58.99 54.69 145.92 95.49
Arizona Managed care Medicaid program (not FFS)
Arkansas 61.05 91.28 153.14 110.20 34.64 69.85 65.60
California 70.28 102.24 126.14 67.98 126.14 59.19 80.25 121.49 146.96 150.38 99.03 193.55
Colorado 77.65 104.82 71.37 71.37 52.37 116.22 107.75 156.82 156.82 100.46
Connecticut 43.59 66.31 114.52 57.26 114.52 41.72 84.46 67.83 126.42 AWP-16% 72.75 120.24
Delaware MP – All adult immunizations are currently manually priced
District of Col. 56.90 86.96 55.46 65.15 39.79 39.20 COV 39.94
Georgia 54.18 59.71 106.49 16.50 112.48
Hawai’i 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00
Idaho 46.92 85.00 107.47 53.74 107.47 44.82 95.84 90.20 131.73 128.75 77.33 MP + 10%
Illinois 54.18 111.18 74.38 39.70 85.00 116.78 149.33 153.10 46.60 190.02
Indiana 62.20 92.77 173.55 54.34 108.68 52.31 118.85 102.50 137.59 134.40 90.66 161.63
Iowa 71.88 86.49 52.26 37.64 66.98 90.24 143.93 42.25 160.76
Kansas 66.65 86.04 119.42 59.71 119.42 48.61 106.49 178.35 135.00 135.00 87.03 170.00
Kentucky 62.94 18.40 55.46 18.40 18.40 82.00 120.75 18.40 18.40
Louisiana 125.29 128.75
Maine 48.22 110.64 119.42 59.71 119.42 47.07 106.49 102.50 120.00 81.67
Maryland 44.06 78.16 119.42 59.71 119.42 47.01 100.43 82.00 130.27 128.75 81.75
Massachusetts 45.32 IC 119.42 59.71 119.42 47.07 103.41 IC 137.59 134.40 81.67 IC
Michigan 52.43 95.24 119.42 59.71 119.42 53.17 106.49 82.66 138.09 135.68 88.10 171.19
Minnesota UK 102.14 119.41 119.41 UK 106.49 124.88 UK UK 81.66 153.93
Mississippi 119.42 59.71 119.42 142.60
Missouri 65.98 91.41 67.54 41.16 53.17 113.86 145.00 5.00 84.52 153.93
Montana 115.47 89.85 106.85 53.42 106.85 50.16 106.49 106.49 130.27 128.75 83.77 153.93
Nebraska 26.89 82.83 RD 59.70 55.10 48.07 91.16 89.43 120.75 74.56 77.79
Nevada 56.31 36.16 102.77 51.08 102.77 33.23 60.62 70.57 124.80 124.80 57.23 117.01
N. Hampshire 61.00 123.00 197.72 65.00 110.20 0.01 113.76 111.61 25.00 0.01 MP
N. Jersey 80.95 103.04 209.86 65.25 209.86 62.33 127.85 125.46 165.49 156.10 105.50 188.66
N. Mexico 52.43 113.28 119.42 59.71 119.42 47.07 106.49 127.15 130.00 128.75 81.67 81.67
N. York INC – All adult vaccine reimbursement rates are based on the acquisition cost
N. Carolina 44.16 89.50 110.41 55.20 110.41 41.02 90.50 106.87 135.73 133.25 86.42 UK
N. Dakota 50.81 54.18 119.42 59.71 119.42 47.15 103.41 89.44
Ohio 46.43 89.68 119.41 59.70 119.41 44.66 98.52 BR 10.00 77.65
Oklahoma 52.42 82.50 115.53 57.77 115.53 39.31 103.03 99.17 127.71 127.71 81.53 171.88
Oregon 52.43 93.87 119.42 59.71 119.42 50.90 106.49 112.87 139.23 136.00 92.57 197.49
Pennsylvania 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00
Rhode Island 52.13 94.73 119.42 59.71 119.42 UK 106.49 UK 135.66 UK 152.00
S. Carolina 62.58 163.26 51.54 104.66 101.02
S. Dakota 34.48 69.78 9.00 9.00 9.00 13.40
Tennessee 100% Managed Care (no fee-for-service). All ACIP-recommended vaccines are covered, but reimbursement varies.
Texas 44.41 55.13 55.13 52.44 137.27 137.27
Utah 59.99 88.13 64.02 50.35 69.11 14.49 26.94 82.71 125.29 128.75 67.80 153.93
Vermont 62.94 PAC 1 110.92 55.46 28.52 34.93 58.66 PAC 1 PAC 1 PAC 6 57.86 28% PAC 1
Virginia IC 77.41 119.42 59.71 119.42 38.05 93.87 130.27 96.08 63.26 INC
Washington 48.22 90.32 119.42 59.71 119.42 50.18 106.49 214.44 119.75 259.31 84.32
West Virginia Data unavailable – fee schedule does not show reimbursement rates.
Wisconsin PCI 91.75 114.55 60.57 3.31 3.31/3.28 72.91 3.31 3.31 3.31 158.10
Wyoming If it is from state-supplied vaccine, $0.00. If it is from a private stock, invoice cost.

Source: MILKEN INSTITUTE/GWU/SPH Medicaid Provider Reimbursement for Adult Immunizations 2014.

S. Carolina = SCDHHS uses alternate CMS codes for 90658. $14.17 (Q2036), $14.17(Q2037), $13.81(Q2038), $10.68(Q2039) = all intramuscular influenza vaccines for ages 3/3+.

SCDHHS does not reimburse intranasal (Flumist) vaccine or administration outside of Vaccines for Children (Physicians Provider Manual, 07/2012).

Abbreviations: BR (By Report), COV (Covered, but reimbursement = $0.00), IC (Individually Considered), INC (Invoice Cost), MP (Manually Priced), PAC (Pricing Action Code), PCI (Pricing Considered Individually), RD (Requires Documentation), UK (Reimbursement rate unknown).

a

Florida does not provide coverage or reimbursement for any vaccines for non-institutionalized adult Medicaid beneficiaries.

All programs, excluding Florida, (50/51) reimburse providers for adult immunizations using vaccine CPT codes as a component of the total reimbursement. Amounts range from $0.01 for measles, mumps, rubella (MMR) vaccine (CPT code 90707) and varicella (90716) in New Hampshire to $259.31 for human papillomavirus (HPV) vaccine (90650) in Washington. Results are presented below for the 50 Medicaid programs that reimburse for adult immunizations.

Reimbursement rates for individual vaccines vary by state. For example, 41 states reimburse for one of the HPV vaccine products (90649), with payments from $3.31 in Wisconsin to $165.49 in New Jersey. The median payment is $131.36. All programs except Alaska, Georgia, Minnesota and South Dakota (46/50) reimburse for pneumococcal vaccine (90732). Payments range from $4.00 in Hawai’i to $106.49 in Virginia. The median payment is $130.27. Two programs reimburse the same amount for all adult vaccines: $4.00 in Hawai’i and $10.00 in Pennsylvania.

Five programs (5/50), reimburse only the vaccine code. In these states, payment for MMR (90707) is $4.00 in Hawai’i, $48.61 in Kansas, $62.33 in New Jersey, and $39.31 in Oklahoma. Information was unavailable for West Virginia.

3.1.2. Vaccine administration reimbursement (Table 2)

Table 2.

Medicaid administration reimbursement for adult vaccinations (n = 33).

Program 90471 90472 90473 90474 96372
Alabama 5.00
Alaska 34.79 18.44 34.79 18.44
Arkansas 1.60 1.60
California 4.46
Colorado 6.33 6.33
DC 10.00/22.45 10.00/10.79
Idaho 19.79 9.95 19.79 9.95
Iowa 5.04 5.04 12.76 12.76
Kentucky 3.30 3.30 3.30 3.30
Louisiana 15.22 9.45 10.80 9.45
Maine 13.43 6.84 8.93 5.94
Massachusetts 17.14 8.37(NFAC)/5.92 (FAC) 11.33 (NFAC)/6.14 (FAC) 7.14 (NFAC)/5.62 (FAC)
Michigan 7.00 7.00 3.00 3.00
Minnesota 18.13 8.97 18.13 8.97
Missouri 12.34 6.25 7.85 5.36
Montana 15.52 8.49 10.62 7.34
Nebraska 5.80 5.80
Nevada 7.80 7.80 7.80 7.80
N. Hampshire 3.05 5.00 3.00 5.00
N. Mexico 10.97 10.97 10.97 10.97
N. Dakota 13.90 11.02 13.90 8.93
N. York 2.00 2.00 2.00 2.00
N. Carolina 13.71 13.71 13.71 13.71
Oregon 16.41 8.35 11.13 7.23
Rhode Island 8.16 3.68 8.16 3.68
S. Carolina 3.72 3.72 3.72
S. Dakota 8.64 8.64
Texas 7.84 3.92 7.84 3.92
Utah 8.37 8.37 8.37 8.37
Vermont 19.86 9.71 18.17 9.43
Virginia 11.00 11.00 11.00 11.00
Washington 14.93 7.26
Wyoming $10.00 (non-physician), $14.00 (physician)

Source: MILKEN INSTITUTE/GWU/SPH Medicaid Provider Reimbursement for Adult Immunizations 2014.

Data Source: Document review and Survey.

Florida does not provide coverage or reimbursement for any vaccines for non-institutionalized adult Medicaid beneficiaries.

Massachusetts: NFAC (non-Facility setting), FAC (Facility setting)

New York: Different Administration rates for: Seasonal influenza and pneumococcal vaccines provided in an office setting (physician, $13.23; nurse practitioner and licensed midwife: $11.25), seasonal intranasal influenza vaccine provided in a clinic or office setting (physician, $8.57; nurse practitioner, licensed midwife: $7.28).

RELEVANT CPT CODES

90471: Vaccine administration (percutaneous, intradermal, subcutaneous, or intramuscular injection); 1 vaccine (single or combination). Do not report in conjunction with 90473.

90472: Each additional vaccine (single or combination) (List separately in addition to code for primary procedure). Use with 90471 or 90473.

90473: Vaccine administration by intranasal or oral route; 1 vaccine (single or combination). Do not report with 90471.

90474: Each additional vaccine (single or combination) (List separately in addition to primary procedure). Use with 90471 or 90473.

96372: Therapeutic, prophylactic, or diagnostic injection (specify substance or drug); subcutaneous or intramuscular).

Most programs’ total reimbursement for adult immunization services includes the vaccine code and one of 5 administration codes (33/50). Vaccine administration codes vary based on the administration method (injection, oral, etc.) and the number of vaccines administered during a visit. Administration reimbursement ranges from $1.60 in Arkansas for a single (90471), first or second administration (90472) to $34.79 for a single or first injection (90471), or an intranasal administration (90473) in Alaska.

Ten of the 33 programs that incorporate an administration code and a vaccine code pay the same amount across all administration codes, ranging from $1.60 in Arkansas to $13.71 in North Carolina: Arkansas ($1.60), Colorado ($6.33), Kentucky ($3.30), Nebraska ($5.80), Nevada ($7.80), New Mexico ($10.97), North Carolina ($13.71), South Carolina ($3.72), South Dakota ($8.64), Utah ($8.37), and Virginia ($11.00).

Massachusetts, New York, and Wyoming have differential payment policies depending on the provider and/or setting where vaccination occurs. Massachusetts provides higher reimbursement for vaccines administered in settings outside hospitals or skilled nursing facilities, than for those provided within facilities. In office settings, New York pays physicians higher administration rates ($13.23) for influenza and pneumococcal vaccines than nurse practitioners and licensed midwives ($11.25). In clinics or offices, physicians receive $8.57 for administration of seasonal intranasal influenza vaccine, while nurse practitioners and licensed midwives are reimbursed $7.28. Wyoming applies the same rate regardless of the administration method: physicians receive $14.00 and non-physicians $10.00.

3.1.3. Office visit reimbursement (Table 3)

Table 3.

Medicaid visit reimbursement rates for adult vaccinations (n = 15).

Program 99211 99281 99385 99386 99395 99396
Connecticut 18.14 11.73 96.35 112.99 78.54 86.68
Delaware 19.81 20.34 109.62 127.41 95.81 104.42
Georgia 17.46 17.28 75.38 75.38 75.38 75.38
Illinois 12.30 14.35 71.76 (PCP) 104.96 64.40 (PCP) 85.65
Indiana 9.98 15.25 69.80 81.60 61.69 67.52
Iowa 17.93 18.27 101.03 121.68 86.94 96.90
Maryland 17.40 19.85 96.88 113.97 79.03 87.23
Mississippi 16.09 17.67 93.37 93.37 76.81 76.81
New York 39.64 6.50 39.64 39.64 39.64 39.64
North Carolina 16.82 17.03 96.83 113.48 84.13 92.08
Ohio 13.43 11.62 68.22 56.62
Pennsylvania 20.00 16.19 20.00 20.00 20.00 20.00
Utah 16.12 16.12 16.12 16.12 16.12 16.12
Virginia (+) 13.77 14.79 89.52 79.78
Wisconsin 12.19 20.21 57.53 58.00 57.53 20.21

Source: MILKEN INSTITUTE/GWU/SPH Medicaid Provider Reimbursement for Adult Immunizations 2014.

Data Source: Document review and survey.

Florida does not provide coverage or reimbursement for any vaccines for non-institutionalized adult Medicaid beneficiaries.

Virginia (+): Visit = medical events when Evaluation/Management (EM) or preventive care services are rendered during an outpatient hospital clinic, office, or RQHC/RHC encounter (CMS Codes).

Illinois: 99385: rates were calculated by taking the allowed percentage of state maximum for the CPT code plus the adult rate ($38.56 for 99385-6, $43.15 for 99395-6).

Mississippi: HPV (90649) & FluMist (90660) administration not covered. Allows reimbursement of administration for influenza & pneumococcal vaccines with 99211 (90471= $18.52, 90472= $9.55)

Utah: Total REIMBURSEMENT = Vaccine CPT Code + ADMINISTRATION CPT CODE OR VISIT CODE.

RELEVANT CPT CODES

99211: Established Patient Office or other outpatient visit for evaluation and management that may not require the presence of a physician. Usually, the presenting problem(s) are minimal. Typically, 5 minutes are spent performing or supervising these services.

99281: Emergency department visit.

99385: New Patient, Initial Comprehensive Preventive Medicine Evaluation and management of an individual including an age and gender appropriate history, examination, counseling/anticipatory guidance/risk factor reduction interventions, and the ordering of appropriate immunizations(s), laboratory/diagnostic procedures; 18–39 years.

99386: New Patient, Initial Comprehensive Preventive Medicine (same as above); 40–64 years.

99395: Established Patient, Periodic Comprehensive Preventive Medicine Reevaluation and management of an individual including an age and gender appropriate history, examination, counseling/anticipatory guidance/risk factor reduction interventions, and the ordering of appropriate immunization(s), laboratory/diagnostic procedures; 18–39 years.

99396: Established Patient, Periodic Comprehensive Preventive Medicine (same as above); 40–64 years.

Fifteen of 50 programs include one of 6 office visit codes. Visit codes are categorized depending on the patient’s age (18–39 or 40–64), whether the patient is new or established, and whether the visit is comprehensive or minor. Reimbursement varies, with the exception of Utah where all visit codes are reimbursed at $16.12.

All 15 programs reimburse for an established patient office or other outpatient visit that may not require a physician’s presence (99211). Payments range from $9.98 in Indiana to $39.64 in New York (excluding visits for administration of seasonal influenza vaccine). The median payment is $16.82. Thirteen of the 15 programs reimburse for initial comprehensive preventive visits for new patients ages 40–64 (99386): from $16.12 in Utah to $127.41 in Delaware. The median payment is $93.37. However, reimbursement for the same services for new patients ages 18–39 (99385), is lower: from $20.00 in Pennsylvania to $109.62 in Delaware, with a median payment of $75.38.

Mississippi has different rules for HPV vaccinations. The state requires providers to bill visit code 99211 and the vaccine code, because “Mississippi Medicaid will not reimburse for a vaccine administration fee” [10]. The vaccine and administration are included in the encounter rate for a core service for rural health clinics (RHC), federally qualified health centers (FQHC), and State Department of Health (MSDH) providers. Thus, reimbursement for a visit is not permitted when the only service provided is vaccine administration.

3.1.4. Using multiple CPT codes

Programs have adopted 4 approaches to reimburse providers for adult immunization services. For most programs (30/50), reimbursement includes vaccine and administration codes. Under this method, reimbursement for pneumococcal vaccine (90732) combined with administration code 90471, ranges from $13.94 in Arkansas ($12.34 for vaccine and $1.60 for administration) to $82.18 in Oregon ($65.77 for vaccine and $16.41 for administration). Reimbursement for influenza vaccine (90658) and administration code 90471 ranges from $8.43 in New Hampshire ($5.38 for vaccine and $3.05 for administration) to $37.01 in the District of Columbia ($14.56 for vaccine and $22.45 for administration).

Eleven programs (11/50) use vaccine and visit codes. In these states, pneumococcal vaccine (90732) and visit code (99396), results in reimbursements from $30.00 in Pennsylvania ($10.00 for vaccine and $20.00 for the visit) to $142.58 in Mississippi ($65.77 for vaccine and $76.81 for the visit). Influenza vaccine (90658) and visit code (99211) range from $15.50 in Wisconsin ($3.31 for vaccine and $12.19 for the visit) to $39.32 in Connecticut ($21.18 for vaccine and $18.14 for the visit).

Five programs (5/50), reimburse based only on a vaccine code. Payment for pneumococcal vaccination ranges from $4.00 in Hawai’i to $65.00 in Kansas. Providers who administer preservative-free influenza vaccine (90656), receive payments of $4.00 in Hawai’i to $26.48 in Kansas. (Data for West Virginia is unavailable.)

In 4 programs (4/50), reimbursement includes vaccine, administration, and visit codes. Under this model, reimbursement for pneumococcal vaccine (90732), administration (90471), and visit (99396 or 99395 in Virginia), is: $124.94 in Iowa ($23.00 for vaccine, $5.04 for administration, and $96.90 for the visit); $137.32 in North Carolina ($31.53 for vaccine, $13.71 for administration, and $92.08 for the visit); and $197.27 in Virginia ($106.49 for vaccine, $11.00 for administration, and $79.78 for the visit). In New York, reimbursement includes the vaccine acquisition cost, $2.00 for administration, and $39.64 for the visit.

Reimbursement for influenza vaccine (90656), administration fee (90471), and visit code (99211) is: $35.76 in Iowa ($12.79 for vaccine, $5.04 for the administration, and $17.93 for the visit); $47.28 in North Carolina ($16.75 for vaccine, $13.71 for administration, and $16.82 for the visit); and $37.99 in Virginia ($18.20 for vaccine, $11.00 for administration, and $13.77 for the visit). New York uses the vaccine acquisition cost in addition to a $2.00 administration fee and $39.64 for the visit.

3.2. Providers eligible to receive Medicaid reimbursement for adult immunizations (Table 4)

Table 4.

Providers eligible to receive Medicaid reimbursement for adult immunizations.

Program Primary care
providers
Pharmacists Nurses Other
Alabama
Alaska
Arizona
Arkansas (certified) CNM
California
Colorado
Connecticut
Delaware Working to
cover
NP
DC
Georgia
Hawai’i
Idaho
Indiana
Iowa
Kentucky
Louisiana
Maine
Maryland
Mass
Michigan
Minnesota
Mississippi
Missouri
Montana
Nebraska
Nevada
N. Jersey
N. Mexico
N. York
N. Dakota
Oklahoma
Oregon NP, PA
S. Carolina
S. Dakota
Tennessee
Texas CNM, CNS,
NP, PA
Utah
Vermont
Virginia
Washington
Wyoming

Source: MILKEN INSTITUTE/GWU/SPH Medicaid Provider Reimbursement for Adult Immunizations 2014.

Data Source: Survey.

Florida does not provide coverage or reimbursement for any vaccines for non-institutionalized adult Medicaid beneficiaries.

Abbreviations: CNM (Certified Nurse Midwife); CNS (Clinical Nurse Specialist); NP (Nurse Practitioner); PA (Physician Assistant).

Idaho: Pharmacists may receive the dispensing fee or the administration fee, but not both.

All programs responding to the survey except for Florida (41/42) reimburse at least one category of provider for the cost of vaccines administered to adult enrollees. All 41 programs reimburse primary care physicians; four of these (Alaska, Georgia, Kentucky, and Maryland), restrict reimbursement to physicians.

Twenty programs (20/41), reimburse primary care physicians, pharmacists and nurses. Delaware is working to authorize pharmacists to receive reimbursement for the cost of vaccines. Four of the 41 programs reimburse other providers: certified nurse midwives (Arkansas and Texas), clinical nurse specialists (Texas), nurse practitioners (Delaware, Oregon and Texas), and physician assistants (Oregon and Texas).

3.3. Reimbursement for vaccines and vaccine administration in different settings

Survey respondents indicated settings where providers may vaccinate. (It was assumed that vaccines administered in provider offices would be covered, and was not offered as a response in the survey.) Most frequently, programs will reimburse for vaccines administered in hospitals and state and local health departments (35/42), long-term care facilities (27/42), and maternal/child health clinics (25/42). Nineteen of 42 programs reimburse STD clinics, mobile clinics (11/42), and community-based organizations (7/42). Eleven programs will reimburse when vaccines are administered in other clinical or supportive settings including: ambulatory care centers, federal health centers, homeless shelters, long-term care facilities, residential treatment facilities, and urgent care facilities.

Most programs reimburse administration fees to state and local health departments (32/42) and hospitals (29/42). Fewer programs reimburse long-term care facilities (19/42), and STD clinics (18/42). Eleven of the 42 programs reimburse for the administration of vaccines that occur in other settings, including ambulatory care centers and federal health centers.

3.4. Vaccine Reimbursement Policy 2003 vs. 2012

In general, more programs addressed reimbursement policy for vaccination services and reimbursed for vaccination services in 2012 when compared to the results of our 2003 study [9]. In 2003, 3/50 programs (6.0%) reimbursed the cost of vaccines, 32/50 programs (64.0%) did not reimburse the cost of vaccines, 8/50 (16.0%) did not address the cost of vaccines, and 5/50 programs (10.0%) did not have reimbursement information available.[9] By 2012, 50/51 programs (98.0%) reimbursed for the cost of vaccines, addressed reimbursement for the cost of vaccines in their program policies, and had vaccine reimbursement information available.

In 2003, 26/50 programs (52.0%) reimbursed providers for vaccine administration, 1/50 programs (2.0%) did not reimburse vaccine administration, 15/50 (30.0%) did not address vaccine administration, and 6/50 programs (12.0%) did not have reimbursement information available. By 2012, the programs reimbursing providers for administration increased 46.0 percentage-points to 50/51 (98.0%), addressed reimbursement for vaccine administration in their program policies, and had vaccine reimbursement information available.

4. Discussion

We found that Medicaid programs use one of 4 approaches that combine CPT codes for vaccines, administration, and a visit to develop payments for adult vaccinations. Most states’ total reimbursement includes a vaccine and an administration code. Other states combine a vaccine and visit code. The third model relies solely on the vaccine code. The last model incorporates the vaccine, visit, and administration codes. States that do not recognize all three codes necessarily limit the amount ultimately paid to providers.

The payment model generally associated with the lowest total reimbursement is a vaccine-only method. For example, pneumococcal vaccination reimbursement is $4.00 in Hawai’i, a state that uses the vaccine-only payment model and is also among the states with the lowest rate. The highest model incorporates payment for a vaccine, the administration method, and a visit category. Using this approach, Virginia pays $197.27 for pneumococcal vaccinations, the highest payment in the country.

The Government Accounting Office (GAO) reports that Medicaid reimbursement rates for adult immunization services diminish the ability to attract and retain sufficient numbers of providers [5]. Other studies show general internal medicine physicians and adult primary care providers indicate that inadequate reimbursement creates a barrier affecting their ability to provide immunization services [11,12]. These findings suggest that increased reimbursement for vaccine administration could improve adult vaccination coverage levels [13]. Medicaid payment policies that ensure vaccines and their administration are reimbursed at sustainable levels and include several provider categories in a wide range of settings, could alleviate a critical barrier to provider participation in Medicaid.

Reimbursement rates for adult immunizations are also influenced by the provider administering the vaccine. Some programs restrict payment for vaccination services to physicians, while other programs compensate non-physician healthcare providers (NPHP) at reduced rates when compared to primary care physicians. For instance, in New York, physicians are compensated at a higher rate for influenza and pneumococcal vaccines administered in an office than nurse practitioners and licensed midwives. Wyoming also pays physicians more than non-physicians for administering any adult vaccine. While all programs reimburse primary care physicians for the cost of vaccines, fewer than half compensate NPHPs. To illustrate, pharmacists are legally permitted to vaccinate adults in all states [14]. However, only 28 Medicaid programs reimburse pharmacists and one state (Delaware), is modifying their program to do so. These practices may impact the ability of skilled and willing providers to offer vaccinations and may decrease Medicaid enrollees’ access to necessary services.

Most frequently, programs will approve payment for vaccinations that occur in hospitals and state and local health departments. Conversely, fewer programs reimburse for vaccines administered in long-term care facilities, clinics, and a wide range of community settings. These policies may present barriers as providers seek reimbursement for vaccinations provided in settings that are readily accessible and familiar to enrollees. Because Medicaid enrollees have limited incomes, they are more likely to lack reliable transportation. As a result, visits to physicians’ offices occur less often than among higher income, privately insured individuals [5]. Policies that expand the number of locations where vaccinations can be reimbursed could create more opportunities for providers to vaccinate and increase uptake among enrollees.

5. Conclusion

Medicaid reimbursement policy for adult vaccines impacts provider participation and enrollee access and uptake. While programs have generally increased reimbursement levels since 2003, each program could assess whether current policies reflect the most effective approach to encourage providers to increase vaccination services. Program administrators might consider: (1) including vaccine administration in the total reimbursement for vaccination services; (2) expanding the categories of providers eligible to receive payment for vaccination; and (3) reimbursing vaccinations provided in a wide range of community settings.

Acknowledgements

Alexandra M. Stewart, JD, Marisa A. Cox, MA, MPH, Kristen H. M. Chang, MA, Leighton Ku, PhD, MPH, and Ricardo Lopez, MA, MPH supported the project. When this project was completed, all were with the Milken Institute School of Public Health, at the George Washington University. CDC scientists collaborated with GW researchers to design the survey, review project findings, and develop this manuscript. The authors thank the Medicaid program administrators who completed the survey and provided their expertise.

Footnotes

Primary funding: The National Center for Immunization and Respiratory Diseases Immunization Services Division of the Centers for Disease Control and Prevention.

Conflict of interest: None.

References

RESOURCES