M66.2

Non-Billable
ChapterM00–M99
Ranksubcategory
Official Description

Spontaneous rupture of extensor tendons

Metadata & Insights
  • Non-billable category (requires more specific sub-code).
  • Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99).
General instructions are available for the parent sections:

Clinical Hierarchy

BillableHas subcodes
CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)
M65-M67Disorders of synovium and tendon (M65-M67)
M66Spontaneous rupture of synovium and tendon
M66.2Spontaneous rupture of extensor tendonsNot billable
M66.20Spontaneous rupture of extensor tendons, unspecified siteBillable
M66.21Spontaneous rupture of extensor tendons, shoulderSubcodes
M66.22Spontaneous rupture of extensor tendons, upper armSubcodes
M66.23Spontaneous rupture of extensor tendons, forearmSubcodes
M66.24Spontaneous rupture of extensor tendons, handSubcodes
M66.25Spontaneous rupture of extensor tendons, thighSubcodes
M66.26Spontaneous rupture of extensor tendons, lower legSubcodes
M66.27Spontaneous rupture of extensor tendons, ankle and footSubcodes
M66.28Spontaneous rupture of extensor tendons, other siteBillable
M66.29Spontaneous rupture of extensor tendons, multiple sitesBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M66.2:

categoryM66
Spontaneous rupture of synovium and tendon
View context instructions
chapterCH13
Diseases of the musculoskeletal system and connective tissue (M00-M99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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