All ICD10 Codes

A18.3

Non-Billable
ChapterA00–B99
Ranksubcategory
Official Description

Tuberculosis of intestines, peritoneum and mesenteric glands

Use a more specific code (3 billable)
A18.31Tuberculous peritonitisA18.32Tuberculous enteritisA18.39Retroperitoneal tuberculosis
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 1: Certain Infectious and Parasitic Diseases (A00-B99).
General instructions are available for the parent sections:
View CH1 NotesView A15-A19 Notes

Clinical Hierarchy

BillableHas subcodes
CH1Certain infectious and parasitic diseases (A00-B99)
A15-A19Tuberculosis (A15-A19)
A18Tuberculosis of other organs
A18.3Tuberculosis of intestines, peritoneum and mesenteric glandsNot billable
A18.31Tuberculous peritonitisBillable
A18.32Tuberculous enteritisBillable
A18.39Retroperitoneal tuberculosisBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to A18.3:

blockA15-A19
Tuberculosis (A15-A19)
View context instructions
chapterCH1
Certain infectious and parasitic diseases (A00-B99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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