M77.0
⚠ Non-billable
Medial epicondylitis
ICD-10-CM · FY2026 · Diseases of the Musculoskeletal System and Connective Tissue
Code
M77.0
System
ICD-10-CM
Billable
No — use specific code
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 M77.0?
ICD-10-CM code M77.0 represents Medial epicondylitis. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Musculoskeletal System and Connective Tissue chapter, effective October 1, 2025 – September 30, 2026.
Is M77.0 billable?
No. M77.0 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is M77.0 in?
M77.0 belongs to the Diseases of the Musculoskeletal System and Connective Tissue chapter (M00–M99) of ICD-10-CM.
Related codes in the M77 category
M77
Other enthesopathies
Non-billable
M77.1
Lateral epicondylitis
Non-billable
M77.2
Periarthritis of wrist
Non-billable
M77.3
Calcaneal spur
Non-billable
M77.4
Metatarsalgia
Non-billable
M77.5
Other enthesopathy of foot and ankle
Non-billable
M77.8
Other enthesopathies, not elsewhere classified
Billable
M77.9
Enthesopathy, unspecified
Billable
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