Try for free

K23 ICD-10-CM Code: Disorders of esophagus in diseases classified elsewhere

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Official description

K23

Disorders of esophagus in diseases classified elsewhere

ICD-10-CM diagnosis code · United States clinical modification

Where K23 sits

  1. 1

    Chapter 11

    Diseases of the digestive system (K00-K95)

  2. 2

    Section

    Diseases of esophagus, stomach and duodenum (K20-K31)

  3. 3

    Category K23

    Disorders of esophagus in diseases classified elsewhere

  4. 4

    Code K23

    Disorders of esophagus in diseases classified elsewhere

Notes for this code

Inclusion terms

No inclusion terms are listed for K23.

Code first

  • underlying disease, such as:
  • congenital syphilis (A50.5)

Use additional code

No “use additional code” instruction is listed for K23.

Excludes1

Conditions that should not be reported together with this code.

  • late syphilis (A52.79)
  • megaesophagus due to Chagas' disease (B57.31)
  • tuberculosis (A18.83)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for K23.

Source and release

Data release
U.S. ICD-10-CM · FY 2027
Effective date
Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Frequently asked questions

What does ICD-10-CM code K23 mean?

K23 is the FY 2027 U.S. ICD-10-CM code for “Disorders of esophagus in diseases classified elsewhere.”

Is K23 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, K23 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is K23 located in ICD-10-CM?

K23 is listed in Chapter 11, Diseases of the digestive system (K00-K95), within Diseases of esophagus, stomach and duodenum (K20-K31) (K20–K31), under category K23, Disorders of esophagus in diseases classified elsewhere.

What coding notes are listed for K23?

No inclusion terms are listed for K23 in this reference record. Code-first instructions: underlying disease, such as:; congenital syphilis (A50.5). Excludes1 notes: late syphilis (A52.79); megaesophagus due to Chagas' disease (B57.31); tuberculosis (A18.83). No Excludes2 note is listed.