A18.09 Other musculoskeletal tuberculosis

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Tuberculous myositis
• Tuberculous synovitis
• Tuberculous tenosynovitis

MS-DRG index

Defines the logic of DRG(s) 548-550 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 015.90 Tuberculosis of unspecified bones and joints, unspecified (approximate)

Code annotations containing back-references to A18.09

Back-references to A18.09

• Type 1 Excludes: M63 Disorders of muscle in diseases classified elsewhere ("myopathy in tuberculosis (A18.09)")

Back-references to A18

• Type 2 Excludes: A31 Infection due to other mycobacteria ("tuberculosis (A15-A19)")

Diagnosis Index entries for A18.09

• Ganglion (compound) (diffuse) (joint) (tendon (sheath)) › tuberculous
• Myositis › in (due to) › tuberculosis
• Osteitis › tuberculosa
• Poncet's disease (tuberculous rheumatism)
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › abscess (respiratory) › muscle
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › bursa
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › fascia
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › ganglion
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › muscle
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › rheumatism NEC
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › synovitis
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › tenosynovitis

Nearby codes

• A18 Tuberculosis of other organs
• A18.0 Tuberculosis of bones and joints
• A18.01 Tuberculosis of spine
• A18.02 Tuberculous arthritis of other joints
• A18.03 Tuberculosis of other bones
• A18.09 Other musculoskeletal tuberculosis (this code)
• A18.1 Tuberculosis of genitourinary system
• A18.10 Tuberculosis of genitourinary system, unspecified
• A18.11 Tuberculosis of kidney and ureter
• A18.12 Tuberculosis of bladder
• A18.13 Tuberculosis of other urinary organs