All ICD10 Codes

A18

Non-Billable
ChapterA00–B99
Rankcategory
Official Description

Tuberculosis of other organs

Use a more specific code (4 billable, 5 non-billable)
A18.0Tuberculosis of bones and jointshas subcodesA18.1Tuberculosis of genitourinary systemhas subcodesA18.2Tuberculous peripheral lymphadenopathyA18.3Tuberculosis of intestines, peritoneum and mesenteric glandshas subcodesA18.4Tuberculosis of skin and subcutaneous tissueA18.5Tuberculosis of eyehas subcodesA18.6Tuberculosis of (inner) (middle) earA18.7Tuberculosis of adrenal glandsA18.8Tuberculosis of other specified organshas subcodes
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 1: Certain Infectious and Parasitic Diseases (A00-B99).

CH1 Parent Instructions

Includes
  • diseases generally recognized as communicable or transmissible
Excludes1(Not coded here. Use a different code.)
  • certain localized infections - see body system-related chapters
Excludes2(Not included here. Code separately if applicable.)
  • carrier or suspected carrier of infectious disease (Z22.-)
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)
Use Additional Code
  • code to identify resistance to antimicrobial drugs (Z16.-)

A15-A19 Parent Instructions

Includes
  • infections due to Mycobacterium tuberculosis and Mycobacterium bovis
Excludes1(Not coded here. Use a different code.)
  • congenital tuberculosis (P37.0)
  • nonspecific reaction to test for tuberculosis without active tuberculosis (R76.1-)
  • pneumoconiosis associated with tuberculosis, any type in A15 (J65)
  • positive PPD (R76.11)
  • positive tuberculin skin test without active tuberculosis (R76.11)
  • sequelae of tuberculosis (B90.-)
  • silicotuberculosis (J65)
Use Additional Code
  • code, if applicable, for associated cachexia (E88.A)

Clinical Hierarchy

BillableHas subcodes
CH1Certain infectious and parasitic diseases (A00-B99)
A15-A19Tuberculosis (A15-A19)
A18Tuberculosis of other organsNot billable
A18.0Tuberculosis of bones and jointsSubcodes
A18.1Tuberculosis of genitourinary systemSubcodes
A18.2Tuberculous peripheral lymphadenopathyBillable
A18.3Tuberculosis of intestines, peritoneum and mesenteric glandsSubcodes
A18.4Tuberculosis of skin and subcutaneous tissueBillable
A18.5Tuberculosis of eyeSubcodes
A18.6Tuberculosis of (inner) (middle) earBillable
A18.7Tuberculosis of adrenal glandsBillable
A18.8Tuberculosis of other specified organsSubcodes

Applicable Ancestor Context

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

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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