Z91.1
Z91.1 — Patient's noncompliance with medical treatment and regimen
Non-billable headerICD-10-CM
Z91.1 is a non-billable header ICD-10-CM code for patient's noncompliance with medical treatment and regimen. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes2 — not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
- caregiver noncompliance with patient's medical treatment and regimen (Z91.A-)
Code also
Both codes may be needed to describe the encounter fully. Sequencing depends on the reason for the visit.
Risk adjustment
Z91.1 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 Z91.1
6 child codes. Green means billable.
- Z91.11Patient's noncompliance with dietary regimen
- Z91.12Patient's intentional underdosing of medication regimen
- Z91.13Patient's unintentional underdosing of medication regimen
- Z91.14Patient's other noncompliance with medication regimen
- Z91.15Patient's noncompliance with renal dialysis
- Z91.19Patient's noncompliance with other medical treatment and regimen
Related codes at this level
Codes that share Z91. If Z91.1 is not quite right, the correct code is usually one of these.
- Z91.0Allergy status, other than to drugs and biological substances
- Z91.ACaregiver's noncompliance with patient's medical treatment and regimen
- Z91.4Personal history of psychological trauma, not elsewhere classified
- Z91.5Personal history of self-harm
- Z91.8Other specified personal risk factors, not elsewhere classified
- Z91.BPersonal risk factor of exposure to diethylstilbestrol
Questions about Z91.1
- Is Z91.1 a billable ICD-10-CM code?
- No. Z91.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does Z91.1 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).