M79.1

Myalgia

Non-billable header

M79.1 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Applicable to

  • Myofascial pain syndrome

Includes (from M79)

  • Note: Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Excludes1

Not coded here — never report together with this code.

  • fibromyalgia (M79.7)
  • myositis (M60.-)
  • psychogenic rheumatism (F45.8) (from M79)
  • soft tissue pain, psychogenic (F45.41) (from M79)

Excludes2

Not included here — may be reported together when both conditions exist.

  • arthropathic psoriasis (L40.5-) (from M79)
  • certain conditions originating in the perinatal period (P04-P96) (from M79)
  • certain infectious and parasitic diseases (A00-B99) (from M79)
  • compartment syndrome (traumatic) (T79.A-) (from M79)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A) (from M79)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from M79)
  • endocrine, nutritional and metabolic diseases (E00-E88) (from M79)
  • injury, poisoning and certain other consequences of external causes (S00-T88) (from M79)
  • neoplasms (C00-D49) (from M79)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from M79)

Also known as

  • Myofascial pain syndrome

Parent code

  • M79Other and unspecified soft tissue disorders, not elsewhere classifiedHeader

More specific codes M79.1

  • M79.10Myalgia, unspecified siteBillable
  • M79.11Myalgia of mastication muscleBillable
  • M79.12Myalgia of auxiliary muscles, head and neckBillable
  • M79.18Myalgia, other siteBillable

Related codes

  • M79.0Rheumatism, unspecifiedBillable
  • M79.2Neuralgia and neuritis, unspecifiedBillable
  • M79.3Panniculitis, unspecifiedBillable
  • M79.4Hypertrophy of (infrapatellar) fat padBillable
  • M79.5Residual foreign body in soft tissueBillable
  • M79.6Pain in limb, hand, foot, fingers and toesHeader
  • M79.7FibromyalgiaBillable
  • M79.ANontraumatic compartment syndromeHeader
  • M79.8Other specified soft tissue disordersHeader
  • M79.9Soft tissue disorder, unspecifiedBillable

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