Z91.A4
Z91.A4 — Caregiver's other noncompliance with patient's medication regimen
Non-billable headerICD-10-CM
Z91.A4 is a non-billable header ICD-10-CM code for caregiver's other noncompliance with patient's medication regimen. It cannot be billed on its own: choose one of the more specific child codes below.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Caregiver's underdosing of patient's medication NOS
- Caregiver's underdosing with patient's medication NOS
Risk adjustment
Z91.A4 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead Z91.A4
2 child codes. Green means billable.
Related codes at this level
Codes that share Z91.A. If Z91.A4 is not quite right, the correct code is usually one of these.
- Z91.A1Caregiver's noncompliance with patient's dietary regimen
- Z91.A2Caregiver's intentional underdosing of patient's medication regimen
- Z91.A3Caregiver's unintentional underdosing of patient's medication regimen
- Z91.A5Caregiver's noncompliance with patient's renal dialysis
- Z91.A9Caregiver's noncompliance with patient's other medical treatment and regimen
Questions about Z91.A4
- Is Z91.A4 a billable ICD-10-CM code?
- No. Z91.A4 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does Z91.A4 sit in the tabular list?
- Factors influencing health status and contact with health services (Z00-Z99), in the block Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99).