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ICD-10-CM · FY 2026 APRIL UPDATE

M66.8

Spontaneous rupture of other tendons

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
M66.80Spontaneous rupture of other tendons, unspecified siteBillable
M66.81Spontaneous rupture of other tendons, shoulderCategory
M66.811Spontaneous rupture of other tendons, right shoulderBillable
M66.812Spontaneous rupture of other tendons, left shoulderBillable
M66.819Spontaneous rupture of other tendons, unspecified shoulderBillable
M66.82Spontaneous rupture of other tendons, upper armCategory
M66.821Spontaneous rupture of other tendons, right upper armBillable
M66.822Spontaneous rupture of other tendons, left upper armBillable
M66.829Spontaneous rupture of other tendons, unspecified upper armBillable
M66.83Spontaneous rupture of other tendons, forearmCategory
M66.831Spontaneous rupture of other tendons, right forearmBillable
M66.832Spontaneous rupture of other tendons, left forearmBillable
M66.839Spontaneous rupture of other tendons, unspecified forearmBillable
M66.84Spontaneous rupture of other tendons, handCategory
M66.841Spontaneous rupture of other tendons, right handBillable
M66.842Spontaneous rupture of other tendons, left handBillable
M66.849Spontaneous rupture of other tendons, unspecified handBillable
M66.85Spontaneous rupture of other tendons, thighCategory
M66.851Spontaneous rupture of other tendons, right thighBillable
M66.852Spontaneous rupture of other tendons, left thighBillable
M66.859Spontaneous rupture of other tendons, unspecified thighBillable
M66.86Spontaneous rupture of other tendons, lower legCategory
M66.861Spontaneous rupture of other tendons, right lower legBillable
M66.862Spontaneous rupture of other tendons, left lower legBillable
M66.869Spontaneous rupture of other tendons, unspecified lower legBillable
M66.87Spontaneous rupture of other tendons, ankle and footCategory
M66.871Spontaneous rupture of other tendons, right ankle and footBillable
M66.872Spontaneous rupture of other tendons, left ankle and footBillable
M66.879Spontaneous rupture of other tendons, unspecified ankle and footBillable
M66.88Spontaneous rupture of other tendons, other sitesBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.