All ICD10 Codes

M66.179

Billable
ChapterM00–M99
Ranksubcategory
Official Description

Rupture of synovium, unspecified toe(s)

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99).
General instructions are available for the parent sections:
View CH13 NotesView M66 NotesView M66.1 Notes

Clinical Hierarchy

CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)
M65-M67Disorders of synovium and tendon (M65-M67)
M66Spontaneous rupture of synovium and tendon
M66.1Rupture of synovium
M66.17Rupture of synovium, ankle, foot and toes
M66.179Rupture of synovium, unspecified toe(s)

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M66.179:

subcategoryM66.1
Rupture of synovium
View context instructions
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 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 557
Tendonitis, Myositis and Bursitis with MCC
DRG 558
Tendonitis, Myositis and Bursitis without MCC

Cross Reference

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