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  6. 2024 ICD-10-CM Code M79.3

2024 ICD-10-CM Diagnosis Code M79.3

Panniculitis, unspecified

ICD-10-CM Code:
M79.3
ICD-10 Code for:
Panniculitis, unspecified
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

Code Classification

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

M79.3 is a billable diagnosis code used to specify a medical diagnosis of panniculitis, unspecified. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Unspecified diagnosis codes like M79.3 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Approximate Synonyms

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

  • Acquired partial lipodystrophy
  • Acute panniculitis
  • Calcific panniculitis
  • Cold panniculitis
  • Cold panniculitis
  • Cytophagic histiocytic panniculitis
  • Drug-induced panniculitis
  • Drug-induced panniculitis
  • Eosinophilic panniculitis
  • Factitial panniculitis
  • Infantile onset panniculitis with uveitis and systemic granulomatosis
  • Infective panniculitis
  • Lipoatrophic panniculitis
  • Lipophagic panniculitis
  • Lobular panniculitis
  • Lobular panniculitis
  • Neonatal cold panniculitis
  • Neonatal disorder of subcutaneous fat
  • Neonatal disorder of subcutaneous fat
  • Nodular panniculitis
  • Nutritional steatitis
  • Panniculitis
  • Panniculitis caused by corticosteroid therapy
  • Panniculitis due to action of lipolytic enzymes
  • Panniculitis due to action of lipolytic enzymes
  • Panniculitis due to action of lipolytic enzymes
  • Panniculitis due to alpha-1 anti-trypsin deficiency
  • Panniculitis due to cholesterol emboli
  • Panniculitis due to crystal deposition
  • Panniculitis due to crystal deposition
  • Panniculitis due to hyperuricemia
  • Panniculitis due to immunological disorder
  • Panniculitis due to immunological disorder
  • Panniculitis due to immunological disorder
  • Panniculitis due to immunological disorder
  • Panniculitis due to physical factor
  • Panniculitis due to physical factor
  • Panniculitis due to physical factor
  • Panniculitis due to physical factor
  • Panniculitis in newborn
  • Panniculitis in newborn
  • Panniculitis induced localized lipodystrophy
  • Panniculitis secondary to histiocytic disorder
  • Panniculitis secondary to histiocytic disorder
  • Panniculitis secondary to malignancy
  • Panniculitis secondary to pancreatic disease
  • Panniculitis with complement deficiency
  • Pressure panniculitis
  • Septal panniculitis
  • Subcutaneous calcification
  • Traumatic complication of procedure
  • Traumatic fat necrosis

Clinical Classification

Clinical Information

  • Panniculitis

    general term for inflammation of adipose tissue, usually of the skin, characterized by reddened subcutaneous nodules.

  • Panniculitis, Lupus Erythematosus

    a type of lupus erythematosus characterized by deep dermal or subcutaneous nodules, most often on the head, face, or upper arms. it is generally chronic and occurs most often in women between the ages of 20 and 45.

  • Panniculitis, Nodular Nonsuppurative

    a form of panniculitis characterized by recurrent episodes of fever accompanied by the eruption of single or multiple erythematous subcutaneous nodules on the lower extremities. they normally resolve, but tend to leave depressions in the skin. the condition is most often seen in women, alone or in association with other disorders.

  • Panniculitis, Peritoneal

    inflammation of the underlying layer of adipose tissue (panniculus) of the peritoneum, usually of the mesentery or the omentum. there are several forms with various names and are usually characterized by infiltration of lymphocytes and neutrophils, fat necrosis, and fibrosis.

  • Autoinflammation, Panniculitis, and Dermatosis Syndrome|AIPDS|ORAS|Otulin-Related Autoinflammatory Syndrome|Otulipenia

    an autosomal recessive condition caused by mutation(s) in the otulin gene, encoding ubiquitin thioesterase otulin. it is characterized by neonatal onset of recurrent fever, erythematous rash with painful nodules, painful joints, and lipodystrophy.

  • Lupus Panniculitis|Lupus Profundus

    a condition primarily affecting the subcutaneous adipose tissues, showing firm nodules that often resolve with lipoatrophy. there can be overlying changes of discoid lupus erythematosus. a skin biopsy showing lobular panniculitis with typical changes of lupus is needed to rule out other causes of panniculitis, including subcutaneous panniculitis-like t-cell lymphoma.

  • Panniculitis

    inflammation of the subcutaneous adipose tissue.

  • Panniculitis Ossificans

    a condition characterized by subcutaneous fat necrosis with heterotopic calcification. it often occurs as a result of injury to the area.

  • Peritoneal Panniculitis

    a disorder characterized by chronic inflammation and fibrosis of the adipose tissues in the peritoneal cavity.

  • Recurrent Subcutaneous Panniculitis-Like T-Cell Lymphoma

    the reemergence of subcutaneous panniculitis-like t-cell lymphoma after a period of remission.

  • Refractory Subcutaneous Panniculitis-Like T-Cell Lymphoma

    subcutaneous panniculitis-like t-cell lymphoma that is resistant to treatment.

  • Subcutaneous Panniculitis-Like T-Cell Lymphoma|SPTCL|Subcutaneous Panniculitis-Like T-Cell Lymphoma (Alpha/Beta Type)|Subcutaneous Panniculitis-Like T-Cell Lymphoma, Alpha/Beta Type|Subcutaneous panniculitis-like T-cell lymphoma|Subcutaneous panniculitis-like T-cell lymphoma

    a cytotoxic primary cutaneous t-cell lymphoma. recent studies suggest there are at least two groups of subcutaneous panniculitis-like t-cell lymphomas, each with distinct histologic features, immunophenotypic profile, and prognosis. one group has an alpha/beta, cd8 positive phenotype, involves only subcutaneous tissues, and usually has an indolent clinical course. the second group has a gamma/delta phenotype, is cd8 negative, often co-expresses cd56, is not confined to the subcutaneous tissues, and usually has a poor prognosis. in the recent who-eortc classification, the term subcutaneous panniculitis-like t-cell lymphoma is reserved for cases with an alpha/beta, cd8 positive phenotype. cases with a gamma/delta phenotype are included in the group of cutaneous gamma/delta t-cell lymphomas.

  • Weber-Christian Disease|Relapsing panniculitis [Weber-Christian]

    evidence of weber-christian disease.

  • Acquired Partial Lipodystrophy

    partial lipodystrophy, the cause of which is not present at birth. examples include lipodystrophy associated with human immunodeficiency virus (hiv) therapy, and barraquer-simons syndrome, associated with c3 nephritic factor.

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • lupus panniculitis L93.2
  • neck and back panniculitis M54.0
  • relapsing Weber-Christian panniculitis M35.6

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert M79.3 to ICD-9-CM

  • ICD-9-CM Code: 729.30 - Panniculitis, unsp site
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education


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 in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.