2020 ICD-10-CM Diagnosis Code M79.7

Fibromyalgia

    2016 2017 2018 2019 2020 Billable/Specific Code
  • M79.7 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM M79.7 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of M79.7 - other international versions of ICD-10 M79.7 may differ.
Applicable To
  • Fibromyositis
  • Fibrositis
  • Myofibrositis
The following code(s) above M79.7 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to M79.7:
  • M00-M99
    2020 ICD-10-CM Range M00-M99

    Diseases of the musculoskeletal system and connective tissue

    Note
    • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
    Type 2 Excludes
    • 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)
    Diseases of the musculoskeletal system and connective tissue
  • M79
    ICD-10-CM Diagnosis Code M79

    Other and unspecified soft tissue disorders, not elsewhere classified

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • psychogenic rheumatism (F45.8)
    • soft tissue pain, psychogenic (F45.41)
    Other and unspecified soft tissue disorders, not elsewhere classified
Approximate Synonyms
  • Fibromyositis
Clinical Information
  • A chronic disorder of unknown etiology characterized by pain, stiffness, and tenderness in the muscles of neck, shoulders, back, hips, arms, and legs. Other signs and symptoms include headaches, fatigue, sleep disturbances, and painful menstruation.
  • A common nonarticular rheumatic condition that is characterized by muscle pain, tenderness, and stiffness.
  • A common nonarticular rheumatic syndrome characterized by myalgia and multiple points of focal muscle tenderness to palpation (trigger points). Muscle pain is typically aggravated by inactivity or exposure to cold. This condition is often associated with general symptoms, such as sleep disturbances, fatigue, stiffness, headaches, and occasionally depression. There is significant overlap between fibromyalgia and the chronic fatigue syndrome (fatigue syndrome, chronic). Fibromyalgia may arise as a primary or secondary disease process. It is most frequent in females aged 20 to 50 years. (from Adams et al., Principles of Neurology, 6th ed, p1494-95)
  • An acute, subacute, or chronic painful state of muscles, subcutaneous tissues, ligaments, tendons, or fasciae caused by a number of agents such as trauma, strain, occupation, exposure, posture, infection, or arthritis.
  • Fibromyalgia makes you feel tired and causes muscle pain and "tender points." tender points are places on the neck, shoulders, back, hips, arms or legs that hurt when touched. People with fibromyalgia may have other symptoms, such as trouble sleeping, morning stiffness, headaches, and problems with thinking and memory, sometimes called "fibro fog."no one knows what causes fibromyalgia. Anyone can get it, but it is most common in middle-aged women. People with rheumatoid arthritis and other autoimmune diseases are particularly likely to develop fibromyalgia. There is no cure for fibromyalgia, but medicines can help you manage your symptoms. Getting enough sleep and exercising may also help. nih: national institute of arthritis and musculoskeletal and skin diseases
  • Inflammation and fibrous degeneration of a muscle.
ICD-10-CM M79.7 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 555 Signs and symptoms of musculoskeletal system and connective tissue with mcc
  • 556 Signs and symptoms of musculoskeletal system and connective tissue without mcc

Convert M79.7 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to M79.7:
  • Type 1 Excludes: T79.A
    , M79.0
    , M79.1
    , M79.A
    ICD-10-CM Diagnosis Code T79.A

    Traumatic compartment syndrome

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • fibromyalgia (M79.7)
    • nontraumatic compartment syndrome (M79.A-)
    Type 2 Excludes
    • traumatic ischemic infarction of muscle (T79.6)
    ICD-10-CM Diagnosis Code M79.0

    Rheumatism, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    Type 1 Excludes
    ICD-10-CM Diagnosis Code M79.1

    Myalgia

      2016 2017 2018 2019 - Converted to Parent Code 2020 Non-Billable/Non-Specific Code
    Applicable To
    • Myofascial pain syndrome
    Type 1 Excludes
    ICD-10-CM Diagnosis Code M79.A

    Nontraumatic compartment syndrome

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Code First
    • , if applicable, associated postprocedural complication
    Type 1 Excludes
    • compartment syndrome NOS (T79.A-)
    • fibromyalgia (M79.7)
    • nontraumatic ischemic infarction of muscle (M62.2-)
    • traumatic compartment syndrome (T79.A-)

Diagnosis Index entries containing back-references to M79.7:

ICD-10-CM Codes Adjacent To M79.7
M79.661 Pain in right lower leg
M79.662 Pain in left lower leg
M79.669 Pain in unspecified lower leg
M79.67 Pain in foot and toes
M79.671 Pain in right foot
M79.672 Pain in left foot
M79.673 Pain in unspecified foot
M79.674 Pain in right toe(s)
M79.675 Pain in left toe(s)
M79.676 Pain in unspecified toe(s)
M79.7 Fibromyalgia
M79.A Nontraumatic compartment syndrome
M79.A1 Nontraumatic compartment syndrome of upper extremity
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
M79.A2 Nontraumatic compartment syndrome of lower extremity
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
M79.A3 …… of abdomen

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.