Chapter 13

M00–M99: Diseases of the Musculoskeletal System and Connective Tissue

Diseases of the Musculoskeletal System and Connective Tissue diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Internal Codes
  • M10.171

    Lead-induced gout, right ankle and foot

  • M10.172

    Lead-induced gout, left ankle and foot

  • M10.179

    Lead-induced gout, unspecified ankle and foot

  • M10.18

    Lead-induced gout, vertebrae

  • M10.19

    Lead-induced gout, multiple sites

  • M10.20

    Drug-induced gout, unspecified site

  • M10.211

    Drug-induced gout, right shoulder

  • M10.212

    Drug-induced gout, left shoulder

  • M10.219

    Drug-induced gout, unspecified shoulder

  • M10.221

    Drug-induced gout, right elbow

  • M10.222

    Drug-induced gout, left elbow

  • M10.229

    Drug-induced gout, unspecified elbow

  • M10.231

    Drug-induced gout, right wrist

  • M10.232

    Drug-induced gout, left wrist

  • M10.239

    Drug-induced gout, unspecified wrist

  • M10.241

    Drug-induced gout, right hand

  • M10.242

    Drug-induced gout, left hand

  • M10.249

    Drug-induced gout, unspecified hand

  • M10.251

    Drug-induced gout, right hip

  • M10.252

    Drug-induced gout, left hip

  • M10.259

    Drug-induced gout, unspecified hip

  • M10.261

    Drug-induced gout, right knee

  • M10.262

    Drug-induced gout, left knee

  • M10.269

    Drug-induced gout, unspecified knee

  • M10.271

    Drug-induced gout, right ankle and foot

  • M10.272

    Drug-induced gout, left ankle and foot

  • M10.279

    Drug-induced gout, unspecified ankle and foot

  • M10.28

    Drug-induced gout, vertebrae

  • M10.29

    Drug-induced gout, multiple sites

  • M10.30

    Gout due to renal impairment, unspecified site

  • M10.311

    Gout due to renal impairment, right shoulder

  • M10.312

    Gout due to renal impairment, left shoulder

  • M10.319

    Gout due to renal impairment, unspecified shoulder

  • M10.321

    Gout due to renal impairment, right elbow

  • M10.322

    Gout due to renal impairment, left elbow

  • M10.329

    Gout due to renal impairment, unspecified elbow

  • M10.331

    Gout due to renal impairment, right wrist

  • M10.332

    Gout due to renal impairment, left wrist

  • M10.339

    Gout due to renal impairment, unspecified wrist

  • M10.341

    Gout due to renal impairment, right hand

  • M10.342

    Gout due to renal impairment, left hand

  • M10.349

    Gout due to renal impairment, unspecified hand

  • M10.351

    Gout due to renal impairment, right hip

  • M10.352

    Gout due to renal impairment, left hip

  • M10.359

    Gout due to renal impairment, unspecified hip

  • M10.361

    Gout due to renal impairment, right knee

  • M10.362

    Gout due to renal impairment, left knee

  • M10.369

    Gout due to renal impairment, unspecified knee

  • M10.371

    Gout due to renal impairment, right ankle and foot

  • M10.372

    Gout due to renal impairment, left ankle and foot

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