Table 1.
Characteristics of patients with ICD-10-CM diagnosis code Z77.120: “Contact with and (suspected) exposure to mold (toxic)” — United States, April 1, 2016–April 1, 2022
| Commercial insurance1 | Medicaid1 | |||||
|---|---|---|---|---|---|---|
| n | % | rate per 10,000 enrollees | n | % | rate per 10,000 enrollees | |
| Total | 10,761 | 3.5 | 7,944 | 8.5 | ||
| Sex | ||||||
| Male | 3,524 | 32.7% | 2.4 | 3,083 | 38.8% | 7.4 |
| Female | 7,237 | 67.3% | 4.5 | 4,861 | 61.2% | 9.4 |
| Age group in years | ||||||
| <18 | 1,570 | 14.6% | 2.3 | 4,571 | 57.5% | 8.1 |
| 18 to 44 | 4,411 | 41.0% | 3.5 | 2,142 | 27.0% | 8.0 |
| 45 to 64 | 4,192 | 39.0% | 4.2 | 1,192 | 15.0% | 12.5 |
| ≥65 | 588 | 5.5% | 3.2 | 39 | 0.5% | 8.3 |
| U.S. census region of primary beneficiary’s residence | ||||||
| Northeast | 1,701 | 15.8% | 3.2 | n/a | n/a | n/a |
| Midwest | 2,094 | 19.5% | 3.2 | n/a | n/a | n/a |
| South | 4,841 | 45.0% | 3.5 | n/a | n/a | n/a |
| West | 2,096 | 19.5% | 3.9 | n/a | n/a | n/a |
| Unknown | 29 | 0.3% | 2.7 | n/a | n/a | n/a |
| Urban/rural classification | ||||||
| Non-rural | 9,682 | 90.0% | 3.5 | n/a | n/a | n/a |
| Rural | 1,055 | 9.8% | 3.0 | n/a | n/a | n/a |
| Unknown | 24 | 0.2% | 3.2 | n/a | n/a | n/a |
| Race/ethnicity | ||||||
| Black, non-Hispanic | n/a | n/a | n/a | 2,923 | 36.8% | 10.4 |
| Hispanic or Latino | n/a | n/a | n/a | 322 | 4.1% | 4.6 |
| Other race, non-Hispanic | n/a | n/a | n/a | 743 | 9.4% | 12.3 |
| White, non-Hispanic | n/a | n/a | n/a | 3,218 | 40.5% | 7.6 |
| Unknown | n/a | n/a | n/a | 738 | 9.3% | 7.7 |
| Season of diagnosis | ||||||
| Winter | 2,397 | 22.3% | 1,793 | 22.6% | ||
| Spring | 2,467 | 22.9% | 1,735 | 21.8% | ||
| Summer | 2,859 | 26.6% | 2,147 | 27.0% | ||
| Fall | 3,038 | 28.2% | 2,269 | 28.6% | ||
| Provider type(s) on day of diagnosis2 | ||||||
| Family practice or internal medicine | 5,346 | 49.7% | 839 | 10.6% | ||
| Laboratory | 1,275 | 11.8% | 661 | 8.3% | ||
| Acute care hospital | 1,173 | 10.9% | 1,823 | 22.9% | ||
| Pediatrician | 811 | 7.5% | 1,450 | 18.3% | ||
| Radiology | 648 | 6.0% | 129 | 1.6% | ||
| Nurse practitioner | 638 | 5.9% | 1,146 | 14.4% | ||
| Allergy/immunology | 544 | 5.1% | 125 | 1.6% | ||
| Pulmonary disease | 490 | 4.6% | 30 | 0.4% | ||
| Otolaryngology | 394 | 3.7% | 51 | 0.6% | ||
| Other | 3,099 | 28.8% | 4,001 | 50.4% | ||
| Unknown | 282 | 2.6% | 964 | 12.1% | ||
| Symptoms2,3 | ||||||
| Fatigue or malaise | 3,094 | 28.8% | 947 | 11.9% | ||
| Cough | 2,932 | 27.2% | 2,584 | 32.5% | ||
| Dyspnea | 1,815 | 16.9% | 1,218 | 15.3% | ||
| Headache | 1,323 | 12.3% | 1,047 | 13.2% | ||
| Chest pain | 1,315 | 12.2% | 920 | 11.6% | ||
| Fever | 649 | 6.0% | 903 | 11.4% | ||
| Nasal congestion | 622 | 5.8% | 860 | 10.8% | ||
| Rash | 502 | 4.7% | 561 | 7.1% | ||
The Commercial/Medicare database includes health insurance claims data from outpatient visits, outpatient prescriptions, and hospitalizations from >54 million employees, dependents, and retirees throughout the United States. The Medicaid database includes similar information from >16 million patients across several states. We limited the analysis to outpatients (>99% of all patients assigned code Z77.120) and excluded patients for whom this code was listed on a laboratory or radiology claim alone (11% in the commercial database and 4% in Medicaid).
Non-mutually exclusive categories
In the 90 days before through 90 days after the Z77.120 diagnosis code was first used during the study period