ICD-10-CM Code M79.89

Other specified soft tissue disorders

Version 2020 Billable Code

Valid for Submission

M79.89 is a billable code used to specify a medical diagnosis of other specified soft tissue disorders. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code M79.89 might also be used to specify conditions or terms like disorder of fascia, disorder of oral soft tissues, disorder of rectus sheath, distribution of body fat loss - finding, fat necrosis, fat necrosis of subcutaneous tissue, etc

Short Description:Other specified soft tissue disorders
Long Description:Other specified soft tissue disorders

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code M79.89:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Polyalgia

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code M79.89 are found in the index:


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Disorder of fascia
  • Disorder of oral soft tissues
  • Disorder of rectus sheath
  • Distribution of body fat loss - finding
  • Fat necrosis
  • Fat necrosis of subcutaneous tissue
  • Finger joint - soft tissue swelling
  • Infection of cervical spine
  • Infection of soft tissue of cervical spine
  • Leg swelling symptom
  • Loss of body fat unevenly distributed
  • Necrosis of subcutaneous tissue
  • Necrotizing soft tissue infection
  • Nodular fat necrosis
  • Oral frictional keratosis
  • Polyalgia
  • Reactive fibrous tissue proliferation
  • Soft tissue crepitus
  • Soft tissue impingement on teeth
  • Soft tissue injury
  • Soft tissue swelling
  • Soft tissue texture changes
  • Swelling of bilateral feet
  • Swelling of bilateral lower limbs
  • Swelling of finger
  • Swelling of finger joint
  • Swelling of left foot
  • Swelling of left lower limb
  • Swelling of limb
  • Swelling of lower limb
  • Swelling of right foot
  • Swelling of right lower limb
  • Swelling of thumb joint
  • Swelling of toe joint
  • Swelling of toe of bilateral feet
  • Swelling of toe of left foot
  • Swelling of toe of right foot
  • Swollen thumb
  • Symptom of lower limb
  • Thumb joint - soft tissue swelling
  • Tissue bogginess
  • Tissue texture abnormality
  • Toe joint - soft tissue swelling

Diagnostic Related Groups

The ICD-10 code M79.89 is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2019 through 09/30/2020.


Convert M79.89 to ICD-9

  • 729.81 - Swelling of limb (Approximate Flag)
  • 729.99 - Soft tissue disorder NEC (Approximate Flag)

Code Classification

  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Other soft tissue disorders (M70-M79)
      • Oth and unsp soft tissue disorders, not elsewhere classified (M79)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients

Connective Tissue Disorders

Your connective tissue supports many different parts of your body, such as your skin, eyes, and heart. It is like a "cellular glue" that gives your body parts their shape and helps keep them strong. It also helps some of your tissues do their work. It is made of many kinds of proteins. Cartilage and fat are types of connective tissue.

Over 200 disorders that impact connective tissue. There are different types:

  • Genetic disorders, such as Ehlers-Danlos syndrome, Marfan syndrome, and osteogenesis imperfecta
  • Autoimmune disorders, such as lupus and scleroderma
  • Cancers, like some types of soft tissue sarcoma

Each disorder has its own symptoms and needs different treatment.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases

[Learn More]

Muscle Disorders

Your muscles help you move and help your body work. Different types of muscles have different jobs. There are many problems that can affect muscles. Muscle disorders can cause weakness, pain or even paralysis.

Causes of muscle disorders include

  • Injury or overuse, such as sprains or strains, cramps or tendinitis
  • A genetic disorder, such as muscular dystrophy
  • Some cancers
  • Inflammation, such as myositis
  • Diseases of nerves that affect muscles
  • Infections
  • Certain medicines

Sometimes the cause is not known.

[Learn More]