Z91 Personal risk factors, not elsewhere classified

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Personal risk factors, not elsewhere classified is Z91 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
Z77-Z99: Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)
Category Z91
87 codes (62 billable)
FY2026 Status
Stable since FY2024
Excludes2
Not included here. These conditions are coded elsewhere but may be coded together if applicable.
  • 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-)

Official Coding Guidelines

Used with any code in range A00.0-T88.9, Z00-Z99

1) Used with any code in the range of A00.0-T88.9, Z00-Z99 An external cause code may be used with any code in the range of A00.0-T88.9, Z00-Z99, classification that represents a health condition due to an external cause. Though they are most applicable to injuries, they are also valid for use with such things as infections or diseases due to an external source, and other health conditions, such as a heart attack that occurs during strenuous physical activity.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.20.a.1
Additional codes with observation code (fragment)

observation code, but only if they are unrelated to the suspected condition being observed.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.21.c.6

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Cite This Page

Reference Z91 with the canonical source and edition:

Z91 — Personal risk factors, not elsewhere classified. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/Z91

Canonical URL: https://icd10codingpro.com/codes/Z91

Related Codes

All Codes in Z91

Every most-specific code under Z91 Personal risk factors, not elsewhere classified (62 codes):

Show the complete Z91 code list
Z91.010 Allergy to peanuts Z91.0110 Allergy to milk products, unspecified Z91.0111 Allergy to milk products with tolerance to baked milk Z91.0112 Allergy to milk products with reactivity to baked milk Z91.0120 Allergy to eggs, unspecified Z91.0121 Allergy to eggs with tolerance to baked egg Z91.0122 Allergy to eggs with reactivity to baked egg Z91.013 Allergy to seafood Z91.014 Allergy to mammalian meats Z91.018 Allergy to other foods Z91.02 Food additives allergy status Z91.030 Bee allergy status Z91.038 Other insect allergy status Z91.040 Latex allergy status Z91.041 Radiographic dye allergy status Z91.048 Other nonmedicinal substance allergy status Z91.09 Other allergy status, other than to drugs and biological substances 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 Z91.120 Patient's intentional underdosing of medication regimen due to financial hardship Z91.128 Patient's intentional underdosing of medication regimen for other reason Z91.130 Patient's unintentional underdosing of medication regimen due to age-related debility Z91.138 Patient's unintentional underdosing of medication regimen for other reason Z91.141 Patient's other noncompliance with medication regimen due to financial hardship Z91.148 Patient's other noncompliance with medication regimen for other reason Z91.151 Patient's noncompliance with renal dialysis due to financial hardship Z91.158 Patient's noncompliance with renal dialysis for other reason Z91.190 Patient's noncompliance with other medical treatment and regimen due to financial hardship Z91.198 Patient's noncompliance with other medical treatment and regimen for other reason Z91.199 Patient's noncompliance with other medical treatment and regimen due to unspecified reason 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 Z91.413 Personal history of adult financial abuse Z91.414 Personal history of adult intimate partner abuse Z91.419 Personal history of unspecified adult abuse Z91.42 Personal history of forced labor or sexual exploitation Z91.49 Other personal history of psychological trauma, not elsewhere classified Z91.51 Personal history of suicidal behavior Z91.52 Personal history of nonsuicidal self-harm Z91.81 History of falling Z91.82 Personal history of military deployment Z91.83 Wandering in diseases classified elsewhere Z91.841 Risk for dental caries, low Z91.842 Risk for dental caries, moderate Z91.843 Risk for dental caries, high Z91.849 Unspecified risk for dental caries Z91.85 Personal history of military service Z91.89 Other specified personal risk factors, not elsewhere classified Z91.A10 Caregiver's noncompliance with patient's dietary regimen due to financial hardship Z91.A18 Caregiver's noncompliance with patient's dietary regimen for other reason Z91.A20 Caregiver's intentional underdosing of patient's medication regimen due to financial hardship Z91.A28 Caregiver's intentional underdosing of medication regimen for other reason Z91.A3 Caregiver's unintentional underdosing of patient's medication regimen Z91.A41 Caregiver's other noncompliance with patient's medication regimen due to financial hardship Z91.A48 Caregiver's other noncompliance with patient's medication regimen for other reason 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.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 Z91.B Personal risk factor of exposure to diethylstilbestrol
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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