ICD-10-CM 2027
ICD-10 code for Polyotia
From the official ICD-10-CM alphabetic index entry “Polyotia”. Page updated September 29, 2026.
About coding Polyotia
The ICD-10-CM code for Polyotia is Q17.0 (Accessory auricle).
Within Q17 (other congenital malformations of ear), Q17.0 is specifically for accessory auricle. Related codes cover Macrotia (Q17.1), Microtia (Q17.2), other misshapen ear (Q17.3), Misplaced ear (Q17.4), prominent ear (Q17.5), other specified congenital malformations of ear (Q17.8) and congenital malformation of ear, unspecified (Q17.9).
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), DRG 156 (Other Ear, Nose, Mouth and Throat Diagnoses without CC/MCC, relative weight 0.6659) and DRG 795 (Normal Newborn, relative weight 0.2022), in MDC 03 (Diseases and Disorders of the Ear, Nose, Mouth and Throat) and MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), 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 Polyotia ICD-10 codes
What is the ICD-10 code for Polyotia?
- Q17.0 — Accessory auricle.
Is Q17.0 billable?
- Yes. Q17.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Q17.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Q17.0 as a principal diagnosis.
Is Q17.0 a CC or MCC?
- No. Q17.0 is neither a CC nor an MCC under MS-DRG v44.0.