M35.5
✓ Billable
Multifocal fibrosclerosis
ICD-10-CM · FY2026 · Diseases of the Musculoskeletal System and Connective Tissue
Code
M35.5
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Diseases of the Musculoskeletal System and Connective Tissue
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code M35.5?
ICD-10-CM code M35.5 represents Multifocal fibrosclerosis. It is a billable diagnosis code in the Diseases of the Musculoskeletal System and Connective Tissue chapter, effective October 1, 2025 – September 30, 2026.
Is M35.5 billable?
Yes. M35.5 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is M35.5 in?
M35.5 belongs to the Diseases of the Musculoskeletal System and Connective Tissue chapter (M00–M99) of ICD-10-CM.
Related codes in the M35 category
M35
Other systemic involvement of connective tissue
Non-billable
M35.0
Sjogren syndrome
Non-billable
M35.1
Other overlap syndromes
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M35.2
Behcet's disease
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M35.3
Polymyalgia rheumatica
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M35.4
Diffuse (eosinophilic) fasciitis
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M35.6
Relapsing panniculitis [Weber-Christian]
Billable
M35.7
Hypermobility syndrome
Billable
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