ICD-10-CM Diagnosis Code (2025)
Official Description for M35
Other systemic involvement of connective tissue
Coding Notes & Guidelines for M35
reactive perforating collagenosis (L87.1)
dry mouth, unspecified (R68.2)
polyangiitis overlap syndrome (M30.8)
polymyalgia rheumatica with giant cell arteritis (M31.5)
- lupus panniculitis (L93.2)
- panniculitis NOS (M79.3-)
ligamentous laxity, NOS (M24.2-)
Ehlers-Danlos syndromes (Q79.6-)
, if applicable, COVID-19 (U07.1)
code to identify associated manifestations
- code, if applicable, for:
- exposure to COVID-19 or SARS-CoV-2 infection (Z20.822)
- personal history of COVID-19 (Z86.16)
- post COVID-19 condition (U09.9)
Sicca syndrome
Renal tubular acidosis in sicca syndrome
Mixed connective tissue disease
Familial ligamentous laxity
- MIS-A
- MIS-C
- Multisystem inflammatory syndrome in adults
- Multisystem inflammatory syndrome in children
- Pediatric inflammatory multisystem syndrome
- PIMS
- Autoimmune disease (systemic) NOS
- Collagen (vascular) disease NOS
- any associated complications such as:
- acute hepatic failure (K72.0-)
- acute kidney failure (N17.-)
- acute myocarditis (I40.-)
- acute respiratory distress syndrome (J80)
- cardiac arrhythmia (I47-I49.-)
- pneumonia due to COVID-19 (J12.82)
- severe sepsis (R65.2-)
- viral cardiomyopathy (B33.24)
- viral pericarditis (B33.23)
Child Codes (More Specific Codes for M35):
About ICD-10-CM Code M35 (Other systemic involvement of connective tissue)
ICD-10-CM code M35 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM M35 became effective on October 1, 2024.
This page provides detailed information about M35 - Other systemic involvement of connective tissue. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Other systemic involvement of connective tissue.