Z91.1
⚠ Non-billable (Header)Patient's noncompliance with medical treatment and regimen
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
- • caregiver noncompliance with patient's medical treatment and regimen (Z91.A-)
⚠️ Excludes2
inherited from Z91Rules from parent category Z91: Personal risk factors, not elsewhere classified
- • 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 (6)
Z91.11Patient's noncompliance with dietary regimenZ91.12Patient's intentional underdosing of medication regimenZ91.13Patient's unintentional underdosing of medication regimenZ91.14Patient's other noncompliance with medication regimenZ91.15Patient's noncompliance with renal dialysisZ91.19Patient's noncompliance with other medical treatment and regimen
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CodeZ91.1
BillableNo — Header code
ParentZ91
CategoryFactors influencing health status and contact with health services (Z00-Z99)
Excludes10 rule(s)
Excludes26 note(s)
Child codes6
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)