A18.83
Tuberculosis of digestive tract organs, not elsewhere classified
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 13 never code together
A15-A19block
Excludes1
- congenital tuberculosis (P37.0)P37.0
- nonspecific reaction to test for tuberculosis without active tuberculosis (R76.1-)R76.1-
- pneumoconiosis associated with tuberculosis, any type in A15 (J65)A15J65
- positive PPD (R76.11)R76.11
- positive tuberculin skin test without active tuberculosis (R76.11)R76.11
- sequelae of tuberculosis (B90.-)B90.-
- silicotuberculosis (J65)J65
A00-B99chapter
Excludes1
- certain localized infections - see body system-related chapters
Excludes2
- carrier or suspected carrier of infectious disease (Z22.-)Z22.-
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)O98.-
- infectious and parasitic diseases specific to the perinatal period (P35-P39)P35-P39
- influenza and other acute respiratory infections (J00-J22)J00-J22
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 4
Index entries leading here 5
- Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) A15.9
- buccal cavity A18.83
- esophagus A18.83
- gallbladder A18.83
- gastritis A18.83
- gum A18.83
- hepatitis A18.83
- linguae A18.83
- lip A18.83
- liver A18.83
- mouth A18.83
- palate (soft) A18.83
- pancreas A18.83
- parotid gland or region A18.83
- salivary gland A18.83
- soft palate A18.83
- stomach A18.83
- subdeltoid bursa A18.83
- submaxillary (region) A18.83
- tongue A18.83
- uvula A18.83
- Degeneration, degenerative
- Esophagitis (acute) (alkaline) (chemical) (chronic) (infectional) (necrotic) (peptic) (postoperative) (without bleeding) K20.90
- tuberculous A18.83
- Gastritis (simple) K29.70
- tuberculous A18.83
- Hepatitis K75.9
- tuberculous A18.83
Alongside this code 5 same parent — A18.8
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.