ICD-10-CM 2027
ICD-10 code for Self-injury
From the official ICD-10-CM alphabetic index entry “Self-injury, nonsuicidal”. Page updated September 29, 2026.
About coding Self-injury
The ICD-10-CM code for Self-injury is R45.88 (Nonsuicidal self-harm). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on R45.88.
Within R45.8 (other symptoms and signs involving emotional state), R45.88 is specifically for nonsuicidal self-harm. Related codes cover low self-esteem (R45.81), Worries (R45.82), excessive crying of child, adolescent or adult (R45.83), Anhedonia (R45.84), Homicidal and suicidal ideations (R45.85), emotional lability (R45.86), Impulsiveness (R45.87) and other symptoms and signs involving emotional state (R45.89).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 883 (Disorders of Personality and Impulse Control, relative weight 1.7697), in MDC 19 (Mental Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific Self-injury codes (official index)
- personal history Z91.52 — Personal history of nonsuicidal self-harm
Common questions about Self-injury ICD-10 codes
What is the ICD-10 code for Self-injury?
- R45.88 — Nonsuicidal self-harm. More specific codes apply when the documentation supports them: Z91.52.
What is the ICD-10 code for personal history self-injury?
- Z91.52 — Personal history of nonsuicidal self-harm.
Is R45.88 billable?
- Yes. R45.88 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R45.88 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R45.88 as a principal diagnosis.
Is R45.88 a CC or MCC?
- No. R45.88 is neither a CC nor an MCC under MS-DRG v44.0.