ICD-10-CM 2027
ICD-10 code for sinusitis
Confirmed by the official ICD-10-CM index entry “sinusitis (accessory) (chronic) (hyperplastic) (nasal) (nonpurulent) (purulent)”. Page updated September 29, 2026.
About coding sinusitis
The ICD-10-CM code for sinusitis is J32.9 (Chronic sinusitis, unspecified). The official index lists 20 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on J32.9.
It is also searched as sinus infection.
Within J32, choose J32.9 (unspecified) only when documentation doesn't support a more specific option: chronic maxillary sinusitis (J32.0), chronic frontal sinusitis (J32.1), chronic ethmoidal sinusitis (J32.2), chronic sphenoidal sinusitis (J32.3), chronic pansinusitis (J32.4) and other chronic sinusitis (J32.8).
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.
Related Sinusitis codes
- J01.00 Acute maxillary sinusitis, unspecified
- J01.01 Acute recurrent maxillary sinusitis
- J01.10 Acute frontal sinusitis, unspecified
- J01.11 Acute recurrent frontal sinusitis
- J01.20 Acute ethmoidal sinusitis, unspecified
- J01.21 Acute recurrent ethmoidal sinusitis
- J01.30 Acute sphenoidal sinusitis, unspecified
- J01.31 Acute recurrent sphenoidal sinusitis
- J01.40 Acute pansinusitis, unspecified
- J01.41 Acute recurrent pansinusitis
- J01.80 Other acute sinusitis
- J01.81 Other acute recurrent sinusitis
- J01.90 Acute sinusitis, unspecified
- J01.91 Acute recurrent sinusitis, unspecified
- J32.0 Chronic maxillary sinusitis
- J32.1 Chronic frontal sinusitis
- J32.2 Chronic ethmoidal sinusitis
- J32.3 Chronic sphenoidal sinusitis
- J32.4 Chronic pansinusitis
- J32.8 Other chronic sinusitis
Common questions about sinusitis ICD-10 codes
What is the ICD-10 code for sinusitis?
- J32.9 — Chronic sinusitis, unspecified. More specific codes apply when the documentation supports them: J01.00, J01.01, J01.10, J01.11 and others below.
What is the ICD-10 code for acute maxillary sinusitis, unspecified?
- J01.00 — Acute maxillary sinusitis, unspecified.
What is the ICD-10 code for acute recurrent maxillary sinusitis?
- J01.01 — Acute recurrent maxillary sinusitis.
What is the ICD-10 code for acute frontal sinusitis, unspecified?
- J01.10 — Acute frontal sinusitis, unspecified.
What is the ICD-10 code for acute recurrent frontal sinusitis?
- J01.11 — Acute recurrent frontal sinusitis.
What is the ICD-10 code for acute ethmoidal sinusitis, unspecified?
- J01.20 — Acute ethmoidal sinusitis, unspecified.
What is the ICD-10 code for acute recurrent ethmoidal sinusitis?
- J01.21 — Acute recurrent ethmoidal sinusitis.
Is J32.9 billable?
- Yes. J32.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J32.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J32.9 as a principal diagnosis.
Is J32.9 a CC or MCC?
- No. J32.9 is neither a CC nor an MCC under MS-DRG v44.0.