A18.32

Tuberculous enteritis

Billable 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)A15 J65
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 6

A18.32code

Inclusion terms

Tuberculosis of anus and rectum
Tuberculosis of intestine (large) (small)

A15-A19block

Includes

infections due to Mycobacterium tuberculosis and Mycobacterium bovis

Use additional code

code, if applicable, for associated cachexia (E88.A)E88.A

A00-B99chapter

Includes

diseases generally recognized as communicable or transmissible

Use additional code

code to identify resistance to antimicrobial drugs (Z16.-)Z16.-

Index entries leading here 9

Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) A15.9
- abscess (respiratory) A15.9
  - intestine A18.32
  - rectum A18.32
  - perirectal A18.32
  - perianal (fistula) A18.32
  - ischiorectal A18.32
- alimentary canal A18.32
- anus A18.32
- appendicitis, appendix A18.32
- bowel (miliary) A18.32
- ulcer (skin) (primary) A18.4
  - bowel or intestine A18.32
- cecum A18.32
- colitis A18.32
- colon A18.32
- diarrhea A18.32
- digestive tract A18.32
- duodenum A18.32
- dysentery A18.32
- enteric, enterica, enteritis A18.32
- enterocolitis A18.32
- gastrocolic fistula A18.32
- gastroenteritis A18.32
- gastrointestinal tract A18.32
- ileocecal (hyperplastic) A18.32
- ileocolitis A18.32
- ileum A18.32
- intestine (any part) A18.32
- ischiorectal A18.32
- jejunum A18.32
- perirectal fistula A18.32
- proctitis A18.32
- rectum (fistula) (with abscess) A18.32
- sigmoid A18.32
- small intestine A18.32
Fistula (cutaneous) L98.8
- anus, anal (recurrent) (infectional) K60.30
  - tuberculous A18.32
- gastrocolic K31.6
  - tuberculous A18.32
- in ano K60.30
  - tuberculous A18.32
- perirectal K60.40
  - tuberculous A18.32
- rectum (to skin) K60.40
  - tuberculous A18.32
Appendicitis (pneumococcal) (retrocecal) K37
- tuberculous A18.32
Colitis (acute) (catarrhal) (chronic) (noninfective) (hemorrhagic) K52.9
- tuberculous (ulcerative) A18.32
Diarrhea, diarrheal (disease) (infantile) (inflammatory) R19.7
- tuberculous A18.32
Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective) K52.9
- tuberculous A18.32
Ulcer, ulcerated, ulcerating, ulceration, ulcerative
- intestine, intestinal K63.3
  - tuberculous A18.32
Proctitis K62.89
- tuberculous A18.32
Stricture — see also Stenosis
- rectum (sphincter) K62.4
  - tuberculous A18.32

Alongside this code 2 same parent — A18.3

A18.31 Tuberculous peritonitis A18.39 Retroperitoneal tuberculosis

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable: yes
Code set: FY2026
Parent: A18.3
Block: A15-A19
Siblings: 2

Present FY2024–FY2027.