ICD-10-CM Code M35.1

Other overlap syndromes

Version 2020 Billable Code

Valid for Submission

M35.1 is a billable code used to specify a medical diagnosis of other overlap syndromes. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code M35.1 might also be used to specify conditions or terms like connective tissue disease overlap syndrome or lupus erythematosus overlap syndrome or overlap syndrome or overlap syndrome or undifferentiated connective tissue disease.

ICD-10:M35.1
Short Description:Other overlap syndromes
Long Description:Other overlap syndromes

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 M35.1:

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.
  • Mixed connective tissue disease

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.
  • polyangiitis overlap syndrome M30.8

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 M35.1 are found in the index:


Synonyms

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

  • Connective tissue disease overlap syndrome
  • Lupus erythematosus overlap syndrome
  • Overlap syndrome
  • Overlap syndrome
  • Undifferentiated connective tissue disease

Clinical Information

  • UNDIFFERENTIATED CONNECTIVE TISSUE DISEASES-. diseases that exhibit signs and symptoms suggestive of a connective tissue disease that do not fulfill clinical or diagnostic criteria for any one defined disease but overlap with criteria of multiple such diseases. commonly overlapping diseases include systemic autoimmune connective tissue diseases such as rheumatoid arthritis; systemic lupus erythematosus; and systemic sclerosis.

Diagnostic Related Groups

The ICD-10 code M35.1 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.

  • 545 - CONNECTIVE TISSUE DISORDERS WITH MCC
  • 546 - CONNECTIVE TISSUE DISORDERS WITH CC
  • 547 - CONNECTIVE TISSUE DISORDERS WITHOUT CC/MCC

Convert M35.1 to ICD-9

  • 710.8 - Diff connect tis dis NEC (Approximate Flag)

Code Classification

  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Systemic connective tissue disorders (M30-M36)
      • Other systemic involvement of connective tissue (M35)

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


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