Z91
⚠ Non-billable (Header)Personal risk factors, not elsewhere classified
Factors influencing health status and contact with health services (Z00-Z99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
⚠️ Excludes2
directMay be coded together if both conditions coexist
- • contact with and (suspected) exposures hazardous to health (Z77.-)
- • exposure to pollution and other problems related to physical environment (Z77.1-)
- • female genital mutilation status (N90.81-)
- • occupational exposure to risk factors (Z57.-)
- • personal history of physical injury and trauma (Z87.81, Z87.82-)
Child Codes (7)
Z91.0Allergy status, other than to drugs and biological substancesZ91.1Patient's noncompliance with medical treatment and regimenZ91.4Personal history of psychological trauma, not elsewhere classifiedZ91.5Personal history of self-harmZ91.8Other specified personal risk factors, not elsewhere classifiedZ91.ACaregiver's noncompliance with patient's medical treatment and regimenZ91.BPersonal risk factor of exposure to diethylstilbestrol
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CodeZ91
BillableNo — Header code
CategoryFactors influencing health status and contact with health services (Z00-Z99)
Excludes10 rule(s)
Excludes25 note(s)
Child codes7
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)