Z91.49 Other personal history of psychological trauma, not elsewhere classified

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Applies from Z91 Personal risk factors, not elsewhere classified

Excludes2 (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-)

MS-DRG index

Defines the logic of DRG(s) 951 in MDC 23.

Approximate ICD-9-CM (GEMs)

• V15.49 Other psychological trauma (approximate)

Medicare Code Edits (MCE v43.1 (April 2026))

• Unacceptable principal diagnosis: These codes describe a circumstance which influences care but is not a current illness or injury, or capture only an underlying condition, and are unacceptable as principal diagnosis.

Diagnosis Index entries for Z91.49

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

Nearby codes

• Z91.412 Personal history of adult neglect
• Z91.413 Personal history of adult financial abuse
• Z91.414 Personal history of adult intimate partner abuse
• Z91.419 Personal history of unspecified adult abuse
• Z91.42 Personal history of forced labor or sexual exploitation
• Z91.49 Other personal history of psychological trauma, not elsewhere classified (this code)
• Z91.5 Personal history of self-harm
• Z91.51 Personal history of suicidal behavior
• Z91.52 Personal history of nonsuicidal self-harm
• Z91.8 Other specified personal risk factors, not elsewhere classified
• Z91.81 History of falling