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).

What cannot be coded together with J33.9?

J33.9 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above J33.9 (J33) and apply to it just the same.

J33.9

J33.9 — Nasal polyp, unspecified

Billable / specific codeICD-10-CM

J33.9 is a billable, specific ICD-10-CM code for nasal polyp, unspecified. It is valid for submission on a claim.

Excludes1 inherited from the categories above J33.9

These are not written on J33.9, but they bind it: a note on a category applies to every code beneath it. Billing J33.9 with anything listed here is a denial.

Written on J33 — Nasal polyp

adenomatous polyps (D14.0)

Other codes that can never be billed with J33.9

These codes carry an Excludes1 note pointing at J33.9. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading J33.9 alone.

D14.0Benign neoplasm of middle ear, nasal cavity and accessory sinuses

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

Code history

J33.9 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

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).
What cannot be coded together with J33.9?: J33.9 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above J33.9 (J33) and apply to it just the same.