All ICD10 Codes

Z91

Non-Billable
ChapterZ00–Z99
Rankcategory
Official Description

Personal risk factors, not elsewhere classified

Use a more specific code (1 billable, 6 non-billable)
Z91.0Allergy status, other than to drugs and biological substanceshas subcodesZ91.1Patient's noncompliance with medical treatment and regimenhas subcodesZ91.4Personal history of psychological trauma, not elsewhere classifiedhas subcodesZ91.5Personal history of self-harmhas subcodesZ91.8Other specified personal risk factors, not elsewhere classifiedhas subcodesZ91.ACaregiver's noncompliance with patient's medical treatment and regimenhas subcodesZ91.BPersonal risk factor of exposure to diethylstilbestrol
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 21: Factors Influencing Health Status and Contact with Health Services (Z00-Z99).

Z77-Z99 Parent Instructions

Code Also
  • any follow-up examination (Z08-Z09)

Instructional Notes

Excludes2(Not included here. Code separately 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-)

Clinical Hierarchy

BillableHas subcodes
CH21Factors influencing health status and contact with health services (Z00-Z99)
Z77-Z99Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)
Z91Personal risk factors, not elsewhere classifiedNot billable
Z91.0Allergy status, other than to drugs and biological substancesSubcodes
Z91.1Patient's noncompliance with medical treatment and regimenSubcodes
Z91.4Personal history of psychological trauma, not elsewhere classifiedSubcodes
Z91.5Personal history of self-harmSubcodes
Z91.8Other specified personal risk factors, not elsewhere classifiedSubcodes
Z91.ACaregiver's noncompliance with patient's medical treatment and regimenSubcodes
Z91.BPersonal risk factor of exposure to diethylstilbestrolBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to Z91:

blockZ77-Z99
Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

Find Procedures (ICD-10-PCS)

Find surgical and procedural codes related to Personal risk factors, not elsewhere classified.

Search PCS Codes