J33.8 Other polyp of sinus

Billable ICD-10-CM code, FY2026.

Applicable to

• Accessory polyp of sinus
• Ethmoidal polyp of sinus
• Maxillary polyp of sinus
• Sphenoidal polyp of sinus

Applies from J33 Nasal polyp

Excludes1 (never code together)

• adenomatous polyps (D14.0)

MS-DRG index

Defines the logic of DRG(s) 154-156 in MDC 03.

Approximate ICD-9-CM (GEMs)

• 471.8 Other polyp of sinus

Code annotations containing back-references to J33.8

Back-references to J33.8

• Type 1 Excludes: D14.0 Benign neoplasm of middle ear, nasal cavity and accessory sinuses ("polyp of accessory sinus (J33.8)")

Back-references to J33

• Type 1 Excludes: D14.0 Benign neoplasm of middle ear, nasal cavity and accessory sinuses ("polyp of nasal (cavity) (J33.-)")

Diagnosis Index entries for J33.8

• Polyp, polypus › accessory sinus
• Polyp, polypus › antrum
• Polyp, polypus › ethmoidal (sinus)
• Polyp, polypus › frontal (sinus)
• Polyp, polypus › maxillary (sinus)
• Polyp, polypus › sinus (accessory) (ethmoidal) (frontal) (maxillary) (sphenoidal)
• Polyp, polypus › sphenoidal (sinus)
• Polyp, polypus › turbinate, mucous membrane

Nearby codes

• J33 Nasal polyp
• J33.0 Polyp of nasal cavity
• J33.1 Polypoid sinus degeneration
• J33.8 Other polyp of sinus (this code)
• J33.9 Nasal polyp, unspecified