NPI Atlas

R45.850 – Homicidal ideations

ICD-10-CM 2027 diagnosis code · Symptoms and signs involving cognition, perception, emotional state and behavior

Billable code

ICD-10-CM code R45.850

Code: R45.850 (claims format: R45850)
Description: Homicidal ideations
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Block: R40-R46 Symptoms and signs involving cognition, perception, emotional state and behavior
Parent codes: R45 › R45.8 › R45.85

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

R45.85 – Homicidal and suicidal ideations

Excludes1 (not coded here):

suicide attempt (T14.91)

Block R40-R46

Excludes2 (not included here):

symptoms and signs constituting part of a pattern of mental disorder (F01-F99)

Index terms for R45.850

Entries in the ICD-10-CM alphabetic index that lead to this code:

Ideation, homicidal

Related codes in R45.85

R45.851 – Suicidal ideationsBillable

Frequently asked questions

What is ICD-10 code R45.850?

R45.850 is the ICD-10-CM code for homicidal ideations, in the block R40-R46 (Symptoms and signs involving cognition, perception, emotional state and behavior).

Is R45.850 a billable code?

Yes. R45.850 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does R45.850 belong to?

It belongs to category R45 – Symptoms and signs involving emotional state.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.