2026 ICD-10-CM Diagnosis Code Z91.49Other personal history of psychological trauma, not elsewhere classified

ICD-10-CM Codes›Z00–Z99›Z77-Z99›Z91

ICD-10-CM Z91.49
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Z91.49 is a billable ICD-10-CM diagnosis code for other personal history of psychological trauma, not elsewhere classified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is not accepted as a principal diagnosis by the Medicare Code Editor and exempt from POA reporting. Coders also document this condition as alleged being subjected to abuse. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Personal history of other disease.

Code Identity

ICD-10-CM Code
Z91.49
Billable Status
Yes — Valid for Submission
Code Describes
Other personal history of psychological trauma, not elsewhere classified
Short Description
Oth personal history of psychological trauma, NEC
Parent Code
Z91.4
Personal history of psychological trauma, not elsewhere classified

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ77-Z99Persons with potential health hazards related to family and personal history and certain conditions influencing health status
CategoryZ91Personal risk factors, not elsewhere classified
This CodeZ91.49Other personal history of psychological trauma, not elsewhere classified

Code EditsBilling

Medicare Code Editor checks that affect claim validity for Z91.49.

Unacceptable principal diagnosis
There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Present on Admission (POA)Billing

Z91.49 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Alleged being subjected to abuse
  • H/O: psychological trauma
  • Victim of psychological trauma

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • History
      • personal (of)
        • psychological
          • trauma, specified NEC
    • History
      • personal (of)
        • trauma (physical) NEC
          • psychological NEC

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR FAC030
Personal history of other disease
Default principal diagnosis: inpatient No · outpatient Yes

Convert Z91.49 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
V15.49 Psychological trauma NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Z91.49Overview

Is Z91.49 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other personal history of psychological trauma, not elsewhere classified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Can Z91.49 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because other personal history of psychological trauma, not elsewhere classified describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.

Is Z91.49 exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for other personal history of psychological trauma, not elsewhere classified on inpatient claims.

What is the ICD-9 equivalent of Z91.49?

Under the General Equivalence Mappings, other personal history of psychological trauma, not elsewhere classified converts to ICD-9-CM V15.49 (psychological trauma NEC). The mapping is approximate, so confirm the match fits the documentation.