1. M79 Other and unspecified soft tissue disorders, not elsewhere classified

    Excludes1

    • psychogenic rheumatism (F45.8)
    • soft tissue pain, psychogenic (F45.41)
    1. M79.0 Rheumatism, unspecified

    2. M79.1 Myalgia

      Inclusion term(s):

      • Myofascial pain syndrome
      1. M79.10 Myalgia, unspecified site

      2. M79.11 Myalgia of mastication muscle

      3. M79.12 Myalgia of auxiliary muscles, head and neck

      4. M79.18 Myalgia, other site

    3. M79.2 Neuralgia and neuritis, unspecified

    4. M79.3 Panniculitis, unspecified

    5. M79.4 Hypertrophy of (infrapatellar) fat pad

    6. M79.5 Residual foreign body in soft tissue

    7. M79.6 Pain in limb, hand, foot, fingers and toes

      1. M79.60 Pain in limb, unspecified

      2. M79.62 Pain in upper arm

        Inclusion term(s):

        • Pain in axillary region
      3. M79.63 Pain in forearm

      4. M79.64 Pain in hand and fingers

      5. M79.65 Pain in thigh

      6. M79.66 Pain in lower leg

      7. M79.67 Pain in foot and toes

    8. M79.7 Fibromyalgia

      Inclusion term(s):

      • Fibromyositis
      • Fibrositis
      • Myofibrositis
    9. M79.8 Other specified soft tissue disorders

      1. M79.81 Nontraumatic hematoma of soft tissue

        Inclusion term(s):

        • Nontraumatic hematoma of muscle
        • Nontraumatic seroma of muscle and soft tissue
      2. M79.89 Other specified soft tissue disorders

        Inclusion term(s):

        • Polyalgia
    10. M79.9 Soft tissue disorder, unspecified

    11. M79.A Nontraumatic compartment syndrome

      1. M79.A1 Nontraumatic compartment syndrome of upper extremity

        Inclusion term(s):

        • Nontraumatic compartment syndrome of shoulder, arm, forearm, wrist, hand, and fingers
        • M79.A11 Nontraumatic compartment syndrome of right upper extremity
        • M79.A12 Nontraumatic compartment syndrome of left upper extremity
        • M79.A19 Nontraumatic compartment syndrome of unspecified upper extremity
      2. M79.A2 Nontraumatic compartment syndrome of lower extremity

        Inclusion term(s):

        • Nontraumatic compartment syndrome of hip, buttock, thigh, leg, foot, and toes
        • M79.A21 Nontraumatic compartment syndrome of right lower extremity
        • M79.A22 Nontraumatic compartment syndrome of left lower extremity
        • M79.A29 Nontraumatic compartment syndrome of unspecified lower extremity
      3. M79.A3 Nontraumatic compartment syndrome of abdomen

      4. M79.A9 Nontraumatic compartment syndrome of other sites

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.