K20
Esophagitis
Non-billable headerNot valid on its own. Use one of the more specific codes under it.
K20 is a non-billable ICD-10-CM code category for esophagitis. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are K20.0 Eosinophilic esophagitis; K20.8 Other esophagitis and K20.9 Esophagitis, unspecified. Its coding notes include a Use additional code instruction, 4 Excludes1 entries and 10 Excludes2 entries.
Use additional code
Add the listed code as a secondary code, if known.
This code
- code to identify:
- alcohol abuse and dependence (F10.-)
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
This code
- eosinophilic gastritis or gastroenteritis (K52.81)
Also from chapter/block level (9 notes)
Inherited from Chapter 11 Diseases of the digestive system
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)