ICD-10-CM 2027
ICD-10 code for EoE (eosinophilic esophagitis)
Confirmed by the official ICD-10-CM index entry “esophagitis (acute) (alkaline) (chemical) (chronic) (infectional) (necrotic) (peptic) (postoperative) (without bleeding) › eosinophilic”. Page updated September 29, 2026.
About coding EoE
The ICD-10-CM code for EoE (eosinophilic esophagitis) is K20.0 (Eosinophilic esophagitis).
Within K20 (esophagitis), K20.0 is specifically for eosinophilic esophagitis. Related codes cover other esophagitis (K20.8) and unspecified (K20.9).
Use an additional code to identify: alcohol abuse and dependence (F10.-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Common questions about EoE ICD-10 codes
What is the ICD-10 code for EoE?
- K20.0 — Eosinophilic esophagitis.
Is K20.0 billable?
- Yes. K20.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K20.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K20.0 as a principal diagnosis.
Is K20.0 a CC or MCC?
- No. K20.0 is neither a CC nor an MCC under MS-DRG v44.0.