A18.02

Tuberculous arthritis of other joints

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

A18.02code

Inclusion terms

Tuberculosis of hip (joint)
Tuberculosis of knee (joint)

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
  - bone A18.03
    - knee A18.02
    - hip A18.02
  - knee A18.02
  - joint NEC A18.02
    - specified NEC A18.02
    - knee A18.02
    - hip A18.02
  - hip A18.02
- ankle (joint) (bone) A18.02
- arthritis (chronic) (synovial) A18.02
- synovitis A18.09
  - articular A18.02
- bone A18.03
  - knee A18.02
  - hip A18.02
- cartilage A18.02
- coxae A18.02
- coxalgia A18.02
- elbow A18.02
- genu A18.02
- hip (joint) (disease) (bone) A18.02
- joint A18.02
- knee (joint) A18.02
- shoulder (joint) A18.02
- sternoclavicular joint A18.02
- swelling, joint (see also category M01) A18.02
- symphysis pubis A18.02
- wrist (joint) A18.02
Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) M19.90
- tuberculous A18.02
Cyst (colloid) (mucous) (simple) (retention)
- Baker's M71.2
  - tuberculous A18.02
Caries
- knee (tuberculous) A18.02
- hip (tuberculous) A18.02
Chondritis M94.8X9
- tuberculous NEC A18.02
Morbus — see also Disease
- coxae senilis M16.9
  - tuberculous A18.02
Coxalgia, coxalgic (nontuberculous) — see also Pain, joint, hip
- tuberculous A18.02
Disease, diseased — see also Syndrome
- hip (joint) M25.9
  - tuberculous A18.02
Inflammation, inflamed, inflammatory (with exudation)
- knee (joint) M13.169
  - tuberculous A18.02

Alongside this code 3 same parent — A18.0

A18.01 Tuberculosis of spine A18.03 Tuberculosis of other bones A18.09 Other musculoskeletal 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: A18.0
Block: A15-A19
Siblings: 3

Present FY2024–FY2027.