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J33.0

J33.0Polyp of nasal cavity

Billable / specific codeICD-10-CM

J33.0 is a billable, specific ICD-10-CM code for polyp of nasal cavity. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Choanal polyp
  • Nasopharyngeal polyp

Risk adjustment

J33.0 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

J33.0 is named in 13 Medicare coverage policies 13 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A52448Billing and Coding: Omalizumab and biosimilar, OMLYCLO® (omalizumab-igec)
  • A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
  • A56559Billing and Coding: Allergy Skin Testing
  • A56559Billing and Coding: Allergy Skin Testing

How J33.0 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 J33.0.

  • Polyp, polypusadenoid tissue
  • Polyp, polypuschoanal
  • Polyp, polypusnasopharyngeal
  • Polyp, polypusseptum(nasal)
  • Polyp, polypusnaresposterior
  • Polyp, polypusnasalcavity
  • Polyp, polypusnasalseptum

Related codes at this level

Codes that share J33. If J33.0 is not quite right, the correct code is usually one of these.

Questions about J33.0

Is J33.0 a billable ICD-10-CM code?
Yes. J33.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does J33.0 sit in the tabular list?
Diseases of the respiratory system (J00-J99), in the block Other diseases of upper respiratory tract (J30-J39).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.