A18
Tuberculosis of other organs
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 12 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 filed at null
No alphabetic index entry points at this code.
Subordinate codes 9
A18.0 Tuberculosis of bones and joints A18.1 Tuberculosis of genitourinary system A18.2 Tuberculous peripheral lymphadenopathy A18.3 Tuberculosis of intestines, peritoneum and mesenteric glands A18.4 Tuberculosis of skin and subcutaneous tissue A18.5 Tuberculosis of eye A18.6 Tuberculosis of (inner) (middle) ear A18.7 Tuberculosis of adrenal glands A18.8 Tuberculosis of other specified organs
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.