ICD-10 Code for Sinusitis

The default ICD-10-CM 2027 code for sinusitis (accessory) (chronic) (hyperplastic) (nasal) (nonpurulent) (purulent) is J32.9 – Chronic sinusitis, unspecified. More specific codes depend on the details documented, as listed in the official index (27 codes, 26 billable).

Main code: J32.9 – Chronic sinusitis, unspecified
Billable: Yes

Index entries for Sinusitis

acute – J01.90
- ethmoidal – J01.20
  - recurrent – J01.21
- frontal – J01.10
  - recurrent – J01.11
- involving more than one sinus, other than pansinusitis – J01.80
  - recurrent – J01.81
- maxillary – J01.00
  - recurrent – J01.01
- pansinusitis – J01.40
  - recurrent – J01.41
- recurrent – J01.91
- specified NEC – J01.80
  - recurrent – J01.81
- sphenoidal – J01.30
  - recurrent – J01.31
allergic – see Rhinitis, allergic
due to high altitude – T70.1 (header)
ethmoidal – J32.2
- acute – J01.20
  - recurrent – J01.21
frontal – J32.1
- acute – J01.10
  - recurrent – J01.11
influenzal – see Influenza, with, respiratory manifestations NEC
involving more than one sinus but not pansinusitis – J32.8
- acute – J01.80
  - recurrent – J01.81
maxillary – J32.0
- acute – J01.00
  - recurrent – J01.01
odontogenic NOS – J34.839
- ethmoid sinus – J34.831
- frontal sinus – J34.832
- maxillary sinus – J34.830
- sphenoid sinus – J34.833
sphenoidal – J32.3
- acute – J01.30
  - recurrent – J01.31
tuberculous, any sinus – A15.8

How to choose the right code

Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.

Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.