H61.313Acquired stenosis of external ear canal secondary to trauma, bilateral

H61.313 is the ICD-10-CM diagnosis code for acquired stenosis of external ear canal secondary to trauma, bilateral. It belongs to category H61 (other disorders of external ear), block H60-H62 (diseases of external ear) and chapter 8 (diseases of the ear and mastoid process). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within H61.31 (acquired stenosis of external ear canal secondary to trauma), H61.313 is specifically for acquired stenosis of external ear canal secondary to trauma, bilateral. Related codes cover right external ear canal secondary to trauma (H61.311), left external ear canal secondary to trauma (H61.312) and unspecified ear (H61.319).

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 154 (Other Ear, Nose, Mouth and Throat Diagnoses with MCC, relative weight 1.5921), DRG 155 (Other Ear, Nose, Mouth and Throat Diagnoses with CC, relative weight 0.9322) and DRG 156 (Other Ear, Nose, Mouth and Throat Diagnoses without CC/MCC, relative weight 0.6659), 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.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 380.51 (acquired stenosis of external ear canal secondary to trauma).