R45.85Homicidal and suicidal ideations

R45.85 is the ICD-10-CM diagnosis code for Homicidal and suicidal ideations. It belongs to category R45 (symptoms and signs involving emotional state), block R40-R46 (symptoms and signs involving cognition, perception, emotional state and behavior) and chapter 18 (symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within R45.8 (other symptoms and signs involving emotional state), R45.85 is specifically for Homicidal and suicidal ideations. Related codes cover low self-esteem (R45.81), Worries (R45.82), excessive crying of child, adolescent or adult (R45.83), Anhedonia (R45.84), emotional lability (R45.86), Impulsiveness (R45.87), nonsuicidal self-harm (R45.88) and other symptoms and signs involving emotional state (R45.89).

To report this condition, pick the subcode that matches the documentation: R45.850 (ideations) and R45.851 (ideations).

Don't report R45.85 together with the conditions in its Excludes1 note: suicide attempt (T14.91).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.