R46.8Other symptoms and signs involving appearance and behavior

R46.8 is the ICD-10-CM diagnosis code for other symptoms and signs involving appearance and behavior. It belongs to category R46 (symptoms and signs involving appearance and behavior), 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 R46, choose R46.8 (Other symptoms and signs involving appearance and behavior) only when documentation doesn't support a more specific option: Very low level of personal hygiene (R46.0), Bizarre personal appearance (R46.1), Strange and inexplicable behavior (R46.2), overactivity (R46.3), Slowness and poor responsiveness (R46.4), Suspiciousness and marked evasiveness (R46.5), Undue concern and preoccupation with stressful events (R46.6) and Verbosity and circumstantial detail obscuring reason for contact (R46.7).

To report this condition, pick the subcode that matches the documentation: R46.81 (behavior) and R46.89 (behavior).

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