A18.83 vs K87
A18.83 (Tuberculosis of digestive tract organs, not elsewhere classified) compared with K87 (Disorders of gallbladder, biliary tract and pancreas in diseases classified elsewhere), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. K87 carries an Excludes1 note covering A18.83: “tuberculosis of gallbladder (A18.83)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. K87 carries an Excludes1 note covering A18.83: “tuberculosis of pancreas (A18.83)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| A18.83Tuberculosis of digestive tract organs, not elsewhere classified | K87Disorders of gallbladder, biliary tract and pancreas in diseases classified elsewhere | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | A00-B99 — Certain Infectious and Parasitic Diseases (A00-B99) | K00-K95 — Diseases of the Digestive System (K00-K95) |
| Definition | Tuberculosis of digestive tract organs, not elsewhere classified is a billable ICD-10-CM diagnosis code (A18.83). | Disorders of gallbladder, biliary tract and pancreas in diseases classified elsewhere is a billable ICD-10-CM diagnosis code (K87). |
| Includes | infections due to Mycobacterium tuberculosis and Mycobacterium bovis | — |
| Use additional code | code, if applicable, for associated cachexia (E88.A) | — |
| Code first | — | underlying disease |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources