Z91
Non-billablePersonal 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
Code Also
A second code may be required; sequencing depends on circumstances
- any follow-up examination (Z08-Z09)
Child Codes (6)
Z91.0Allergy status, oth than to drugs and biological substances
Z91.1Patient's noncompliance with medical treatment and regimen
Z91.4Personal history of psychological trauma, NEC
Z91.5Personal history of self-harm
Z91.8Oth personal risk factors, not elsewhere classified
Z91.ACarers noncompl with patient's medical treatment and regimen
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.