Z91.A98 Caregiver's noncompliance with patient's other medical treatment and regimen for other reason

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Applies from Z91 Personal risk factors, not elsewhere classified

Excludes2 (not included here)

• 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-)

Applies from Z91.A9 Caregiver's noncompliance with patient's other medical treatment and regimen

Applicable to

• Caregiver's nonadherence to patient's medical treatment

MS-DRG index

Defines the logic of DRG(s) 951 in MDC 23.

Medicare Code Edits (MCE v43.1 (April 2026))

• Unacceptable principal diagnosis: These codes describe a circumstance which influences care but is not a current illness or injury, or capture only an underlying condition, and are unacceptable as principal diagnosis.

Code annotations containing back-references to Z91.A98

Back-references to Z91.A

• Type 2 Excludes: Z91.1 Patient's noncompliance with medical treatment and regimen ("caregiver noncompliance with patient's medical treatment and regimen (Z91.A-)")

Diagnosis Index entries for Z91.A98

• Noncompliance › caregiver › with patient's › medical treatment and regimen › specified reason NEC

Nearby codes

• Z91.A5 Caregiver's noncompliance with patient's renal dialysis
• Z91.A51 Caregiver's noncompliance with patient's renal dialysis due to financial hardship
• Z91.A58 Caregiver's noncompliance with patient's renal dialysis for other reason
• Z91.A9 Caregiver's noncompliance with patient's other medical treatment and regimen
• Z91.A91 Caregiver's noncompliance with patient's other medical treatment and regimen due to financial hardship
• Z91.A98 Caregiver's noncompliance with patient's other medical treatment and regimen for other reason (this code)
• Z91.4 Personal history of psychological trauma, not elsewhere classified
• Z91.41 Personal history of adult abuse
• Z91.410 Personal history of adult physical and sexual abuse
• Z91.411 Personal history of adult psychological abuse
• Z91.412 Personal history of adult neglect