Z91

Non-billable

Personal risk factors, not elsewhere classified

Personal risk factors, not elsewhere classified

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Block

Z77-Z99

Child Codes

6

Coding Notes

Excludes 2

Conditions not included here, but the patient may have both

  • 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

A second code may be required; sequencing depends on circumstances

  • any follow-up examination (Z08-Z09)

Child Codes (6)

Also Known As / Clinical Terms

Frequently Asked Questions

What is ICD-10 code Z91?

ICD-10-CM code Z91 represents "Personal risk factors, not elsewhere classified". It is a non-billable header code — use a more specific child code for billing purposes.

Is Z91 a billable code?

No, Z91 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 6 child codes under Z91.

What chapter is Z91 in?

Z91 is in Chapter 22: Factors Influencing Health Status and Contact With Health Services (codes Z00-Z99).

What are the subcategories under Z91?

Z91 has 6 child codes, including: Z91.0 (Allergy status, oth than to drugs and biological substances), Z91.1 (Patient's noncompliance with medical treatment and regimen), Z91.4 (Personal history of psychological trauma, NEC), Z91.5 (Personal history of self-harm), and 2 more.

What are the UMLS CUIs for Z91?

Z91 is linked to 1 UMLS Concept Unique Identifier: C2911444. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

Automate ICD-10 Coding With AI

Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.

Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.