J33.9 — Nasal polyp, unspecified
J33.9 is a billable, specific ICD-10-CM code for nasal polyp, unspecified. It is valid for submission on a claim.
Risk adjustment
J33.9 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.
Medicare coverage
J33.9 is named in 3 Medicare coverage policies — 3 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
- A56729Billing and Coding: Magnetic Resonance Imaging of the Head and Neck
- A57181Billing and Coding: Allergy Testing
How J33.9 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 J33.9.
- Polyp, polypus›nasal(mucous)
- Polyp, polypus›nose(mucous)
- Hyperplasia, hyperplastic›nose›polypoid
- Polyp, polypus›nares›anterior
Related codes at this level
Codes that share J33. If J33.9 is not quite right, the correct code is usually one of these.
Questions about J33.9
- Is J33.9 a billable ICD-10-CM code?
- Yes. J33.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does J33.9 sit in the tabular list?
- Diseases of the respiratory system (J00-J99), in the block Other diseases of upper respiratory tract (J30-J39).