R45.850 Homicidal ideations

Billable ICD-10-CM code, FY2026.

Applies from R45.85 Homicidal and suicidal ideations

Excludes1 (never code together)

• suicide attempt (T14.91)

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• V62.85 Homicidal ideation

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.

Code annotations containing back-references to R45.850

Back-references to R45

• Type 1 Excludes: F07.0 Personality change due to known physiological condition ("signs and symptoms involving emotional state (R45.-)")

Diagnosis Index entries for R45.850

• Ideation › homicidal

Nearby codes

• R45.81 Low self-esteem
• R45.82 Worries
• R45.83 Excessive crying of child, adolescent or adult
• R45.84 Anhedonia
• R45.85 Homicidal and suicidal ideations
• R45.850 Homicidal ideations (this code)
• R45.851 Suicidal ideations
• R45.86 Emotional lability
• R45.87 Impulsiveness
• R45.88 Nonsuicidal self-harm
• R45.89 Other symptoms and signs involving emotional state