M66 ICD-10-CM Code: Spontaneous rupture of synovium and tendon
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
M66Spontaneous rupture of synovium and tendon
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where M66 sits
- 1
Chapter 13
Diseases of the musculoskeletal system and connective tissue (M00-M99)
- 2
Section
Disorders of synovium and tendon (M65-M67)
- 3
Category M66
Spontaneous rupture of synovium and tendon
- 4
Code M66
Spontaneous rupture of synovium and tendon
More specific choices
Codes under M66
M66 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for M66.
Code first
No “code first” instruction is listed for M66.
Use additional code
No “use additional code” instruction is listed for M66.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for M66.
Excludes2
Conditions not included here that may be reported separately when present.
- rotator cuff syndrome (M75.1-)
- rupture where an abnormal force is applied to normal tissue - see injury of tendon by body region
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code M66 mean?
M66 is the FY 2027 U.S. ICD-10-CM code for “Spontaneous rupture of synovium and tendon.”
Is M66 a billable or specific ICD-10-CM code?
No. M66 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is M66 located in ICD-10-CM?
M66 is listed in Chapter 13, Diseases of the musculoskeletal system and connective tissue (M00-M99), within Disorders of synovium and tendon (M65-M67) (M65–M67), under category M66, Spontaneous rupture of synovium and tendon.
What coding notes are listed for M66?
No inclusion terms are listed for M66 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. Excludes2 notes: rotator cuff syndrome (M75.1-); rupture where an abnormal force is applied to normal tissue - see injury of tendon by body region.
Ready to transform your clinical documentation?
Join Vero and see how effortless documentation can be.
No credit card required
Cancel anytime