U.S. ICD-10-CM · FY 2027

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.

Code definition

Official description

K23

Disorders of esophagus in diseases classified elsewhere

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

Classification

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

Documentation details

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.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

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

Code-specific guidance

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.

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