Is Z91.A a billable code?
No. Z91.A is a header code that groups 11 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
Z91.A: Caregiver's noncompliance with patient's medical treatment and regimen
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
Z91.A groups related diagnoses under caregiver's noncompliance with patient's medical treatment and regimen. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under Z91.A
- Z91.A10Caregiver's noncompliance with patient's dietary regimen due to financial hardship
- Z91.A18Caregiver's noncompliance with patient's dietary regimen for other reason
- Z91.A20Caregiver's intentional underdosing of patient's medication regimen due to financial hardship
- Z91.A28Caregiver's intentional underdosing of medication regimen for other reason
- Z91.A3Caregiver's unintentional underdosing of patient's medication regimen
- Z91.A41Caregiver's other noncompliance with patient's medication regimen due to financial hardship
- Z91.A48Caregiver's other noncompliance with patient's medication regimen for other reason
- Z91.A51Caregiver's noncompliance with patient's renal dialysis due to financial hardship
- Z91.A58Caregiver's noncompliance with patient's renal dialysis for other reason
- Z91.A91Caregiver's noncompliance with patient's other medical treatment and regimen due to financial hardship
- Z91.A98Caregiver's noncompliance with patient's other medical treatment and regimen for other reason
Other codes in Z91 Personal risk factors, not elsewhere classified
- Z91.0Allergy status, other than to drugs and biological substancesheader
- Z91.1Patient's noncompliance with medical treatment and regimenheader
- Z91.4Personal history of psychological trauma, not elsewhere classifiedheader
- Z91.5Personal history of self-harmheader
- Z91.8Other specified personal risk factors, not elsewhere classifiedheader
- Z91.BPersonal risk factor of exposure to diethylstilbestrol
Z91.A questions
What does Z91.A mean?
Z91.A is the ICD-10-CM code for Caregiver's noncompliance with patient's medical treatment and regimen. It is in chapter 22, Factors influencing health status and contact with health services (Z00-Z99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.