K23 – Disorders of esophagus in diseases classified elsewhere
ICD-10-CM 2027 diagnosis code · Diseases of esophagus, stomach and duodenum
ICD-10-CM code
K23
- Code
K23(claims format:K23)- Description
- Disorders of esophagus in diseases classified elsewhere
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 11. Diseases of the digestive system (K00-K95)
- Block
- K20-K31 Diseases of esophagus, stomach and duodenum
Notes for K23
Excludes1 (not coded here):
Code first:
- underlying disease, such as:
- congenital syphilis (A50.5)
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block K20-K31
Excludes2 (not included here):
- hiatus hernia (K44.-)
Index terms for K23
Entries in the ICD-10-CM alphabetic index that lead to this code:
Frequently asked questions
What is ICD-10 code K23?
K23 is the ICD-10-CM code for disorders of esophagus in diseases classified elsewhere, in the block K20-K31 (Diseases of esophagus, stomach and duodenum).
Is K23 a billable code?
Yes. K23 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.