K23

Billable

Disorders of esophagus in diseases classified elsewhere

K23 is the ICD-10-CM code for Disorders of esophagus in diseases classified elsewhere. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
K00-K95
Edition
FY2026

K00-K95 Diseases of the digestive system

What this means — in plain language

MedlinePlus · NIH

What are esophagus disorders? Esophagus disorders are problems with how your esophagus works. The esophagus is the tube that carries food from your mouth to your stomach. You usually don't notice it unless you swallow something too big, hot, or cold. You might also notice it if something is wrong. When that happens, you might feel pain or have trouble swallowing (dysphagia). What causes esophagus disorders? The…

Read more about Esophagus Disorders at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

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

Code first

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

Frequently asked questions

What is ICD-10 code K23?
K23 is the ICD-10-CM code for "Disorders of esophagus in diseases classified elsewhere". It falls under K00-K95 Diseases of the digestive system.
Is K23 a billable code?
Yes — K23 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from K23?
Excludes1 (not coded here): late syphilis (A52.79); megaesophagus due to Chagas' disease (B57.31); tuberculosis (A18.83).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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