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Z91.A4

⚠ Non-billable (Header)

Caregiver's other noncompliance with patient's medication 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.

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Also Known As

Caregiver's underdosing of patient's medication NOSCaregiver's underdosing with patient's medication NOS
✅ No additional coding notes for Z91.A4

Child Codes (2)

Z91.A41Caregiver's other noncompliance with patient's medication regimen due to financial hardshipZ91.A48Caregiver's other noncompliance with patient's medication regimen for other reason

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Code Information

CodeZ91.A4
BillableNo — Header code
ParentZ91.A
CategoryFactors influencing health status and contact with health services (Z00-Z99)
Excludes10 rule(s)
Excludes20 note(s)
Child codes2

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)