Personal risk factors, not elsewhere classified (Z91) ICD-10-CM
The Z91 code range covers personal risk factors, not elsewhere classified with 87 ICD-10-CM diagnosis codes. 62 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Codes in the Z91 Range 87 codes · 62 billable
- Z91 Personal risk factors, not elsewhere classifiedNon-billable
- Z91.0 Allergy status, other than to drugs and biological substancesNon-billable
- Z91.01 Food allergy statusNon-billable
- Z91.010 Allergy to peanuts
- Z91.011 Allergy to milk productsNon-billable
- 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
- Z91.012 Allergy to eggsNon-billable
- 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
- Z91.03 Insect allergy statusNon-billable
- Z91.030 Bee allergy status
- Z91.038 Other insect allergy status
- Z91.04 Nonmedicinal substance allergy statusNon-billable
- 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
- Z91.1 Patient's noncompliance with medical treatment and regimenNon-billable
- Z91.11 Patient's noncompliance with dietary regimenNon-billable
- 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
- Z91.12 Patient's intentional underdosing of medication regimenNon-billable
- 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
- Z91.13 Patient's unintentional underdosing of medication regimenNon-billable
- 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
- Z91.14 Patient's other noncompliance with medication regimenNon-billable
- 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
- Z91.15 Patient's noncompliance with renal dialysisNon-billable
- Z91.151 Patient's noncompliance with renal dialysis due to financial hardship
- Z91.158 Patient's noncompliance with renal dialysis for other reason
- Z91.19 Patient's noncompliance with other medical treatment and regimenNon-billable
- 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
- Z91.4 Personal history of psychological trauma, not elsewhere classifiedNon-billable
- Z91.41 Personal history of adult abuseNon-billable
- 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
- Z91.5 Personal history of self-harmNon-billable
- Z91.51 Personal history of suicidal behavior
- Z91.52 Personal history of nonsuicidal self-harm
- Z91.8 Other specified personal risk factors, not elsewhere classifiedNon-billable
- Z91.81 History of falling
- Z91.82 Personal history of military deployment
- Z91.83 Wandering in diseases classified elsewhere
- Z91.84 Oral health risk factorsNon-billable
- 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.A Caregiver's noncompliance with patient's medical treatment and regimenNon-billable
- Z91.A1 Caregiver's noncompliance with patient's dietary regimenNon-billable
- 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.A2 Caregiver's intentional underdosing of patient's medication regimenNon-billable
- 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.A4 Caregiver's other noncompliance with patient's medication regimenNon-billable
- 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.A5 Caregiver's noncompliance with patient's renal dialysisNon-billable
- 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 regimenNon-billable
- 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
About the Z91 Code Range
These personal risk factors include allergy status, noncompliance with medical treatment, histories of psychological trauma or self-harm, and exposure to diethylstilbestrol.
Z91.0 separates allergies to food, food additives, insects, and nonmedicinal substances from allergies to drugs or biological substances. The patient and caregiver branches, Z91.1 and Z91.A, distinguish dietary regimens, medication regimens, renal dialysis, and other treatment. Their medication subdivisions distinguish intentional from unintentional underdosing.
Z91.4 separates histories of adult abuse, forced labor, and sexual exploitation. Z91.5 separates suicidal behavior from nonsuicidal self-harm. Other branches identify a history of falling, military deployment or service, wandering, oral health risks, and exposure to diethylstilbestrol.
FY 2027 changes: The FY 2027 ICD-10-CM update, effective October 1, 2026, deleted Z91.011 and Z91.012.
Questions About This Page
How many billable codes are in the Z91 range?
Of the 87 codes in this range, 62 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the Z91 range classify?
The range classifies personal risk factors, not elsewhere classified. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
