Diagnosis Codes Used to Identify Patient Cohorts
| Coding System | Code | Description |
|---|---|---|
| ICD-10 | B34.2 | Coronavirus infection unspecified |
| ICD-10 | B97.29 | Other coronavirus as the cause of diseases classified elsewhere |
| ICD-10 | J12.81 | Pneumonia due to SARS-associated coronavirus |
| ICD-10 | U07.1 | 2019-nCoV acute respiratory disease (WHO) |
| ICD-10 | K50 | Crohn’s disease [regional enteritis] |
| ICD-10 | K51 | Ulcerative colitis |
| COVID-19–related diagnostic tests | ||
| CPT | 87635 | Infectious agent detection by nucleic acid (DNA or RNA); severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) (coronavirus disease [COVID-19]), amplified probe technique |
| HCPCS | U0001 | 2019 novel coronavirus real-time RT-PCR diagnostic test panel–CDC |
| HCPCS | U0002 | 2019 novel coronavirus real-time RT-PCR diagnostic test panel–non-CDC |
| LOINC | 94307-6 | SARS coronavirus 2 N gene [presence] in unspecified specimen by nucleic acid amplification using CDC primer-probe set N1 |
| LOINC | 94307-6 | SARS coronavirus 2 N gene [presence] in unspecified specimen by nucleic acid amplification using CDC primer-probe set N2 |
| LOINC | 94309-2 | SARS coronavirus 2 RNA [presence] in unspecified specimen by NAA with probe detection |
| LOINC | 94310-0 | SARS-like coronavirus N gene [presence] in unspecified specimen by NAA with probe detection |
| LOINC | 94314-2 | SARS coronavirus 2 RdRp gene [presence] in unspecified specimen by NAA with probe detection |
| LOINC | 94315-9 | SARS coronavirus 2 E gene [presence] in unspecified specimen by NAA with probe detection |
| LOINC | 94316-7 | SARS coronavirus 2 N gene [presence] in unspecified specimen by NAA with probe detection |
| LOINC | 94500-6 | SARS coronavirus 2 RNA [Presence] in respiratory specimen by NAA with probe detection |
| LOINC | 94501-4 | Middle East respiratory syndrome coronavirus (MERS-CoV) RNA [presence] in respiratory specimen by NAA with probe detection |
| LOINC | 94502-2 | SARS-related coronavirus RNA [presence] in respiratory specimen by NAA with probe detection |
| LOINC | 94532-9 | SARS-related coronavirus + MERS coronavirus RNA [presence] in respiratory specimen by NAA with probe detection |
| LOINC | 94533-7 | SARS coronavirus 2 N gene [presence] in respiratory specimen by NAA with probe detection |
| LOINC | 94534-5 | SARS coronavirus 2 RdRp gene [presence] in respiratory specimen by NAA with probe detection |
| LOINC | 94559-2 | SARS coronavirus 2 ORF1ab region [presence] in respiratory specimen by NAA with probe detection |
| LOINC | 94565-9 | SARS coronavirus 2 RNA [presence] in nasopharynx by NAA with nonprobe detection |
| LOINC | 94639-2 | SARS coronavirus 2 ORF1ab region [presence] in unspecified specimen by NAA with probe detection |
| LOINC | 94640-0 | SARS coronavirus 2 S gene [presence] in respiratory specimen by NAA with probe detection |
| LOINC | 94641-8 | SARS coronavirus 2 S gene [presence] in unspecified specimen by NAA with probe detection |
| LOINC | 94647-5 | SARS-related coronavirus RNA [presence] in unspecified specimen by NAA with probe detection |
| LOINC | 94660-8 | SARS coronavirus 2 RNA [presence] in serum or plasma by NAA with probe detection |
| LOINC | 94756-4 | SARS coronavirus 2 N gene [presence] in respiratory specimen by nucleic acid amplification using CDC primer-probe set N1 |
| LOINC | 94757-2 | SARS coronavirus 2 N gene [presence] in respiratory specimen by nucleic acid amplification using CDC primer-probe set N2 |
| LOINC | 94758-0 | SARS coronavirus 2 E gene [presence] in respiratory specimen by NAA with probe detection |
| LOINC | 94759-8 | SARS coronavirus 2 RNA [presence] in nasopharynx by NAA with probe detection |
| LOINC | 94765-5 | SARS coronavirus 2 E gene [presence] in serum or plasma by NAA with probe detection |
| LOINC | 94766-3 | SARS coronavirus 2 N gene [presence] in serum or plasma by NAA with probe detection |
| LOINC | 94767-1 | SARS coronavirus 2 S gene [presence] in serum or plasma by NAA with probe detection |
CDC, Centers for Disease Control and Prevention; NAA, nucleic acid amplification; nCoV, novel coronavirus; ORF, open reading frame; RT-PCR, reverse-transcription polymerase chain reaction; WHO, World Health Organization.