ICD-10-CM 2027
ICD-10 code for acute pansinusitis
From the official ICD-10-CM alphabetic index entry “Pansinusitis (chronic) (hyperplastic) (nonpurulent) (purulent) › acute”. Page updated September 29, 2026.
About coding acute pansinusitis
The ICD-10-CM code for acute pansinusitis is J01.40 (Acute pansinusitis, unspecified). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on J01.40.
Within J01.4, choose J01.40 (unspecified) only when documentation doesn't support a more specific option: recurrent pansinusitis (J01.41).
Use an additional code (B95-B97) to identify infectious agent.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific acute pansinusitis codes (official index)
- recurrent J01.41 — Acute recurrent pansinusitis
Common questions about acute pansinusitis ICD-10 codes
What is the ICD-10 code for acute pansinusitis?
- J01.40 — Acute pansinusitis, unspecified. More specific codes apply when the documentation supports them: J01.41.
What is the ICD-10 code for recurrent acute pansinusitis?
- J01.41 — Acute recurrent pansinusitis.
Is J01.40 billable?
- Yes. J01.40 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J01.40 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J01.40 as a principal diagnosis.
Is J01.40 a CC or MCC?
- No. J01.40 is neither a CC nor an MCC under MS-DRG v44.0.