ICD-10-CM 2027
ICD-10 code for Woakes' ethmoiditis
From the official ICD-10-CM alphabetic index entry “Ethmoiditis (chronic) (nonpurulent) (purulent) › Woakes'”. Page updated September 29, 2026.
About coding Woakes' ethmoiditis
The ICD-10-CM code for Woakes' ethmoiditis is J33.1 (Polypoid sinus degeneration).
Within J33 (nasal polyp), J33.1 is specifically for Polypoid sinus degeneration. Related codes cover polyp of nasal cavity (J33.0), other polyp of sinus (J33.8) and unspecified (J33.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 154 (Other Ear, Nose, Mouth and Throat Diagnoses with MCC, relative weight 1.5921), DRG 155 (Other Ear, Nose, Mouth and Throat Diagnoses with CC, relative weight 0.9322) and DRG 156 (Other Ear, Nose, Mouth and Throat Diagnoses without CC/MCC, relative weight 0.6659), in MDC 03 (Diseases and Disorders of the Ear, Nose, Mouth and Throat), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about Woakes' ethmoiditis ICD-10 codes
What is the ICD-10 code for Woakes' ethmoiditis?
- J33.1 — Polypoid sinus degeneration.
Is J33.1 billable?
- Yes. J33.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J33.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J33.1 as a principal diagnosis.
Is J33.1 a CC or MCC?
- No. J33.1 is neither a CC nor an MCC under MS-DRG v44.0.