Nasal polyp (J33) ICD-10-CM
The J33 code range covers nasal polyp with 5 ICD-10-CM diagnosis codes. 4 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- adenomatous polyps D14.0
Codes in the J33 Range 5 codes · 4 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the J33 range.
Allergic Fungal Sinusitis
Fungal infection in the PARANASAL SINUSES characterized by common allergy respiratory symptoms, recurrent NASAL POLYPS and/or ASTHMA with buildup of allergic MUCIN.
Rhinosinusitis
Obstruction of sinus drainage into the NASAL CAVITY and inflammation of the NASAL MUCOSA in the PARANASAL SINUSES.
About the J33 Code Range
ICD-10 code J33 and its subcategories classify different types of nasal polyps, which are noncancerous growths in the nasal cavity and sinuses. These codes help specify the exact location and type of nasal polyps for accurate medical documentation and treatment planning.
The code J33.0 covers polyps located specifically within the nasal cavity, including variations such as choanal or nasopharyngeal polyps. This is useful when identifying growths that affect the mucous membrane of various nasal regions. J33.1 refers to polypoid sinus degeneration, often related to sinus inflammation alongside nasal polyps, sometimes noted as sinusitis with nasal polyps. The code J33.8 includes other sinus polyps found in areas like the maxillary, ethmoidal, frontal, or sphenoidal sinuses. When the polyp's location or type is not clearly defined, J33.9 identifies unspecified nasal polyps, often linked with chronic rhinosinusitis or multiple nasal polyps. These codes help medical professionals pinpoint the site and nature of nasal polyps, aiding in diagnosis, treatment decisions, and proper medical billing for conditions involving nasal and sinus growths.
Questions About This Page
How many billable codes are in the J33 range?
Of the 5 codes in this range, 4 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the J33 range classify?
The range classifies nasal polyp. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
