ICD-10-CM 2027
ICD-10 code for maxillary sinus lesion
From the official ICD-10-CM alphabetic index entry “Lesion (s) (nontraumatic) › maxillary sinus”. Page updated September 29, 2026.
About coding maxillary sinus lesion
The ICD-10-CM code for maxillary sinus lesion is J32.0 (Chronic maxillary sinusitis).
Within J32 (chronic sinusitis), J32.0 is specifically for chronic maxillary sinusitis. Related codes cover chronic frontal sinusitis (J32.1), chronic ethmoidal sinusitis (J32.2), chronic sphenoidal sinusitis (J32.3), chronic pansinusitis (J32.4), other chronic sinusitis (J32.8) and unspecified (J32.9).
Use an additional code to identify: infectious agent (B95-B97).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Common questions about maxillary sinus lesion ICD-10 codes
What is the ICD-10 code for maxillary sinus lesion?
- J32.0 — Chronic maxillary sinusitis.
Is J32.0 billable?
- Yes. J32.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J32.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J32.0 as a principal diagnosis.
Is J32.0 a CC or MCC?
- No. J32.0 is neither a CC nor an MCC under MS-DRG v44.0.