ICD-10 K23
Billable / SpecificDisorders of esophagus in diseases classified elsewhere
About ICD-10-CM K23
ICD-10-CM code K23 represents Disorders of esophagus in diseases classified elsewhere. This is a billable/specific code in the Digestive System chapter (block K23). The 2026 edition of ICD-10-CM K23 became effective on October 1, 2025.
Type 1 Excludes
Pure excludes, these codes can never be coded together with K23. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- late syphilis (A52.79)
- megaesophagus due to Chagas' disease (B57.31)
- tuberculosis (A18.83)
Coding Notes
Code First
- underlying disease, such as:
- congenital syphilis (A50.5)
Medicare LCD Coverage for K23
Local Coverage Determinations (LCDs) from CMS MACs that list K23 as a covered diagnosis.
Showing top 10 of 21 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing K23.
1 Medicare
CPT Codes Commonly Billed with K23
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Convert K23 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| K23 | 53089 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To K23
Other codes in section K20-K31 (Diseases of esophagus, stomach and duodenum).
ICD-10 K23, Billing FAQ
Is ICD-10 code K23 billable? +
Yes, K23 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What codes are Type 1 Excludes for K23? +
Type 1 Excludes (never code together with K23): late syphilis (A52.79); megaesophagus due to Chagas' disease (B57.31); tuberculosis (A18.83)
What ICD-9 codes does K23 map to? +
Per CMS GEMs, K23 maps to ICD-9 codes: 53089. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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