ICD-10-CM 2027
ICD-10 code for eustachian catarrh
From the official ICD-10-CM alphabetic index entry “Catarrh, catarrhal (acute) (febrile) (infectious) (inflammation) › eustachian”. Page updated September 29, 2026.
About coding eustachian catarrh
The ICD-10-CM code for eustachian catarrh is H68.009 (Unspecified Eustachian salpingitis, unspecified ear).
Within H68.00, choose H68.009 (unspecified ear) only when documentation doesn't support a more specific option: right ear (H68.001), left ear (H68.002) and bilateral (H68.003).
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 152 (Otitis Media and URI with MCC, relative weight 1.1151) and DRG 153 (Otitis Media and URI without MCC, relative weight 0.7421), 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 eustachian catarrh ICD-10 codes
What is the ICD-10 code for eustachian catarrh?
- H68.009 — Unspecified Eustachian salpingitis, unspecified ear.
Is H68.009 billable?
- Yes. H68.009 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can H68.009 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict H68.009 as a principal diagnosis.
Is H68.009 a CC or MCC?
- No. H68.009 is neither a CC nor an MCC under MS-DRG v44.0.