R46.2Billable
Strange and inexplicable behavior
- Chapter
- 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
- Category
- R46
- Effective date
- October 1, 2026
Related codes in category R46
R46Symptoms and signs involving appearance and behaviorR46.0Very low level of personal hygieneYesR46.1Bizarre personal appearanceYesR46.3OveractivityYesR46.4Slowness and poor responsivenessYesR46.5Suspiciousness and marked evasivenessYesR46.6Undue concern and preoccupation with stressful eventsYesR46.7Verbosity and circumstantial detail obscuring rsn for cntctYesR46.8Other symptoms and signs involving appearance and behaviorR46.81Obsessive-compulsive behaviorYesR46.89Other symptoms and signs involving appearance and behaviorYes
Frequently asked questions
What is ICD-10 code R46.2?
R46.2 is an ICD-10-CM diagnosis code for Strange and inexplicable behavior.
Is R46.2 a billable code?
Yes. R46.2 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is R46.2 in?
R46.2 falls under Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.
When did R46.2 become effective?
R46.2 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to R46.2?
R46.2 belongs to category R46, which includes 11 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.