Z91.11 is the authoritative medical code for Patient's noncompliance with dietary regimen. This classification is used in medical billing and clinical recording to specify the clinical criteria for patient's noncompliance with dietary regimen (ICD-10-CM Z91.11), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Patient's noncompliance with dietary regimen is a non-billable ICD-10-CM category code Z91.11. A more specific billable subcode must be selected for claims submission. Excludes2 (not included here): caregiver noncompliance with patient's medical treatment and regimen Z91.A-; 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-). Code also: , if applicable, food insecurity Z59.4-; , if applicable, to identify underdosing of specific drug (T36-T50 with final character 6); any follow-up examination Z08-Z09.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for Z91.11 in the official ICD-10-CM tabular list.
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- caregiver noncompliance with patient's medical treatment and regimen Z91.A-
- 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-)
Code Also
Additional codes that may be required to fully describe the encounter.
- , if applicable, food insecurity Z59.4-
- , if applicable, to identify underdosing of specific drug (T36-T50 with final character 6)
- any follow-up examination Z08-Z09
Frequently Asked Questions (FAQ) & Clinical Guidance
Can Z91.11 be billed directly?
No. Z91.11 (Patient's noncompliance with dietary regimen) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Can Z91.11 be reported alongside related conditions?
Per official ICD-10-CM Excludes2 instructions, Z91.11 and the following are not considered part of each other and may both be reported when both conditions are present: caregiver noncompliance with patient's medical treatment and regimen (Z91.A-); 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-).
Nearest Codes in This Family
Official ICD-10-CM classifications closest to Z91.11 in its code family, with their registry titles.
- Z91.110 — Patient's noncompliance with dietary regimen due to financial hardship
- Z91.118 — Patient's noncompliance with dietary regimen for other reason
- Z91.119 — Patient's noncompliance with dietary regimen due to unspecified reason