ICD-10-CM · Chapter 21 · Z00-Z99
Z91 Personal risk factors, not elsewhere classified
Excludes 2 (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-)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| Z91..0 | Allergy status, other than to drugs and biological substances | No |
| Z91..01 | Food allergy status | No |
| Z91..010 | Allergy to peanuts | Yes |
| Z91..011 | Allergy to milk products | No |
| Z91..0110 | Allergy to milk products, unspecified | Yes |
| Z91..0111 | Allergy to milk products with tolerance to baked milk | Yes |
| Z91..0112 | Allergy to milk products with reactivity to baked milk | Yes |
| Z91..012 | Allergy to eggs | No |
| Z91..0120 | Allergy to eggs, unspecified | Yes |
| Z91..0121 | Allergy to eggs with tolerance to baked egg | Yes |
| Z91..0122 | Allergy to eggs with reactivity to baked egg | Yes |
| Z91..013 | Allergy to seafood | Yes |
| Z91..014 | Allergy to mammalian meats | Yes |
| Z91..018 | Allergy to other foods | Yes |
| Z91..02 | Food additives allergy status | Yes |
| Z91..03 | Insect allergy status | No |
| Z91..030 | Bee allergy status | Yes |
| Z91..038 | Other insect allergy status | Yes |
| Z91..04 | Nonmedicinal substance allergy status | No |
| Z91..040 | Latex allergy status | Yes |
| Z91..041 | Radiographic dye allergy status | Yes |
| Z91..048 | Other nonmedicinal substance allergy status | Yes |
| Z91..09 | Other allergy status, other than to drugs and biological substances | Yes |
| Z91..1 | Patient's noncompliance with medical treatment and regimen | No |
| Z91..11 | Patient's noncompliance with dietary regimen | No |
| Z91..110 | Patient's noncompliance with dietary regimen due to financial hardship | Yes |
| Z91..118 | Patient's noncompliance with dietary regimen for other reason | Yes |
| Z91..119 | Patient's noncompliance with dietary regimen due to unspecified reason | Yes |
| Z91..12 | Patient's intentional underdosing of medication regimen | No |
| Z91..120 | Patient's intentional underdosing of medication regimen due to financial hardship | Yes |
| Z91..128 | Patient's intentional underdosing of medication regimen for other reason | Yes |
| Z91..13 | Patient's unintentional underdosing of medication regimen | No |
| Z91..130 | Patient's unintentional underdosing of medication regimen due to age-related debility | Yes |
| Z91..138 | Patient's unintentional underdosing of medication regimen for other reason | Yes |
| Z91..14 | Patient's other noncompliance with medication regimen | No |
| Z91..141 | Patient's other noncompliance with medication regimen due to financial hardship | Yes |
| Z91..148 | Patient's other noncompliance with medication regimen for other reason | Yes |
| Z91..15 | Patient's noncompliance with renal dialysis | No |
| Z91..151 | Patient's noncompliance with renal dialysis due to financial hardship | Yes |
| Z91..158 | Patient's noncompliance with renal dialysis for other reason | Yes |
| Z91..19 | Patient's noncompliance with other medical treatment and regimen | No |
| Z91..190 | Patient's noncompliance with other medical treatment and regimen due to financial hardship | Yes |
| Z91..198 | Patient's noncompliance with other medical treatment and regimen for other reason | Yes |
| Z91..199 | Patient's noncompliance with other medical treatment and regimen due to unspecified reason | Yes |
| Z91..A | Caregiver's noncompliance with patient's medical treatment and regimen | No |
| Z91..A1 | Caregiver's noncompliance with patient's dietary regimen | No |
| Z91..A10 | Caregiver's noncompliance with patient's dietary regimen due to financial hardship | Yes |
| Z91..A18 | Caregiver's noncompliance with patient's dietary regimen for other reason | Yes |
| Z91..A2 | Caregiver's intentional underdosing of patient's medication regimen | No |
| Z91..A20 | Caregiver's intentional underdosing of patient's medication regimen due to financial hardship | Yes |
| Z91..A28 | Caregiver's intentional underdosing of medication regimen for other reason | Yes |
| Z91..A3 | Caregiver's unintentional underdosing of patient's medication regimen | Yes |
| Z91..A4 | Caregiver's other noncompliance with patient's medication regimen | No |
| Z91..A41 | Caregiver's other noncompliance with patient's medication regimen due to financial hardship | Yes |
| Z91..A48 | Caregiver's other noncompliance with patient's medication regimen for other reason | Yes |
| Z91..A5 | Caregiver's noncompliance with patient's renal dialysis | No |
| Z91..A51 | Caregiver's noncompliance with patient's renal dialysis due to financial hardship | Yes |
| Z91..A58 | Caregiver's noncompliance with patient's renal dialysis for other reason | Yes |
| Z91..A9 | Caregiver's noncompliance with patient's other medical treatment and regimen | No |
| Z91..A91 | Caregiver's noncompliance with patient's other medical treatment and regimen due to financial hardship | Yes |
| Z91..A98 | Caregiver's noncompliance with patient's other medical treatment and regimen for other reason | Yes |
| Z91..4 | Personal history of psychological trauma, not elsewhere classified | No |
| Z91..41 | Personal history of adult abuse | No |
| Z91..410 | Personal history of adult physical and sexual abuse | Yes |
| Z91..411 | Personal history of adult psychological abuse | Yes |
| Z91..412 | Personal history of adult neglect | Yes |
| Z91..413 | Personal history of adult financial abuse | Yes |
| Z91..414 | Personal history of adult intimate partner abuse | Yes |
| Z91..419 | Personal history of unspecified adult abuse | Yes |
| Z91..42 | Personal history of forced labor or sexual exploitation | Yes |
| Z91..49 | Other personal history of psychological trauma, not elsewhere classified | Yes |
| Z91..5 | Personal history of self-harm | No |
| Z91..51 | Personal history of suicidal behavior | Yes |
| Z91..52 | Personal history of nonsuicidal self-harm | Yes |
| Z91..8 | Other specified personal risk factors, not elsewhere classified | No |
| Z91..81 | History of falling | Yes |
| Z91..82 | Personal history of military deployment | Yes |
| Z91..83 | Wandering in diseases classified elsewhere | Yes |
| Z91..84 | Oral health risk factors | No |
| Z91..841 | Risk for dental caries, low | Yes |
| Z91..842 | Risk for dental caries, moderate | Yes |
| Z91..843 | Risk for dental caries, high | Yes |
| Z91..849 | Unspecified risk for dental caries | Yes |
| Z91..85 | Personal history of military service | Yes |
| Z91..89 | Other specified personal risk factors, not elsewhere classified | Yes |
| Z91..B | Personal risk factor of exposure to diethylstilbestrol | Yes |
Last reviewed: September 2026