Symptoms and signs involving appearance and behavior (R46) ICD-10-CM
The R46 code range covers symptoms and signs involving appearance and behavior with 12 ICD-10-CM diagnosis codes. 10 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the R46 Range 12 codes · 10 billable
- R46 Symptoms and signs involving appearance and behaviorNon-billable
- R46.0 Very low level of personal hygiene
- R46.1 Bizarre personal appearance
- R46.2 Strange and inexplicable behavior
- R46.3 Overactivity
- R46.4 Slowness and poor responsiveness
- R46.5 Suspiciousness and marked evasiveness
- R46.6 Undue concern and preoccupation with stressful events
- R46.7 Verbosity and circumstantial detail obscuring reason for contact
- R46.8 Other symptoms and signs involving appearance and behaviorNon-billable
- R46.81 Obsessive-compulsive behavior
- R46.89 Other symptoms and signs involving appearance and behavior
About the R46 Code Range
Appearance and behavior signs include very low personal hygiene, unusual appearance, unexplained behavior, and differences in activity or responsiveness.
R46 separates hygiene and appearance from behavior. Its subdivisions distinguish overactivity, slowness and poor responsiveness, suspiciousness, concern about stressful events, and excessive detail that obscures the reason for contact. Within R46.8, R46.81 names obsessive-compulsive behavior, while R46.89 names other appearance and behavior signs.
Questions About This Page
How many billable codes are in the R46 range?
Of the 12 codes in this range, 10 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the R46 range classify?
The range classifies symptoms and signs involving appearance and behavior. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
