ICD-10 Code for Esophagitis
The default ICD-10-CM 2027 code for esophagitis (acute) (alkaline) (chemical) (chronic) (infectional) (necrotic) (peptic) (postoperative) (without bleeding) is K20.90 – Esophagitis, unspecified without bleeding. More specific codes depend on the details documented, as listed in the official index (11 codes, 11 billable).
- Main code
K20.90– Esophagitis, unspecified without bleeding- Billable
- Yes
Index entries for Esophagitis
- with bleeding –
K20.91 - candidal –
B37.81 - due to gastrointestinal reflux disease (without bleeding) –
K21.00- with bleeding –
K21.01
- with bleeding –
- eosinophilic –
K20.0 - reflux –
K21.00- with bleeding –
K21.01
- with bleeding –
- specified NEC (without bleeding) –
K20.80- with bleeding –
K20.81
- with bleeding –
- tuberculous –
A18.83 - ulcerative –
K22.10- with bleeding –
K22.11
- with bleeding –
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.