B37.84 — Candidal otitis externa
B37.84 is a billable, specific ICD-10-CM code for candidal otitis externa. It is valid for submission on a claim.
Other codes that can never be billed with B37.84
These codes carry an Excludes1 note pointing at B37.84. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading B37.84 alone.
- H62.4Otitis externa in other diseases classified elsewhere
Risk adjustment
B37.84 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
How B37.84 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to B37.84.
- Candidiasis, candidal›otitis externa
- Otomycosis NEC›in›candidiasis
- Otomycosis NEC›in›moniliasis
- Ear›tropical NEC›in›candidiasis
- Ear›tropical NEC›in›moniliasis
- Mycosis, mycotic›ear›in›candidiasis
- Mycosis, mycotic›ear›in›moniliasis
- Otitis›externa›in›candidiasis
- Otitis›externa›mycotic NEC›in›candidiasis
- Otitis›externa›mycotic NEC›in›moniliasis
- Otitis›externa›tropical NEC›in›candidiasis
- Otitis›externa›tropical NEC›in›moniliasis
Related codes at this level
Codes that share B37.8. If B37.84 is not quite right, the correct code is usually one of these.
Questions about B37.84
- Is B37.84 a billable ICD-10-CM code?
- Yes. B37.84 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does B37.84 sit in the tabular list?
- Certain infectious and parasitic diseases (A00-B99), in the block Mycoses (B35-B49).