Question 1

Is M66 a billable ICD-10 code?

Accepted Answer

No, M66 is not a billable code. It is a category code that requires additional specificity. You must select a more specific code from the subcategories for billing purposes.

Question 2

What does ICD-10 code M66 mean?

Accepted Answer

ICD-10-CM code M66 represents Spontaneous rupture of synovium and tendon. This code is part of the International Classification of Diseases, 10th Revision, Clinical Modification used for medical coding and billing in the United States.

Question 3

When was ICD-10 code M66 introduced?

Accepted Answer

Code M66 has been part of ICD-10-CM since 2016, when the coding system was mandated for use in the United States. This code was included in the original US implementation.

Question 4

What is the parent category for ICD-10 code M66?

Accepted Answer

The parent category for M66 is section:M65-M67 (Disorders of synovium and tendon (M65-M67)). This hierarchical classification helps organize related diagnoses for more accurate coding.

Question 5

What conditions should be coded separately from M66?

Accepted Answer

Code M66 has Type 2 Excludes including: rotator cuff syndrome (M75.1-); rupture where an abnormal force is applied to normal tissue - see injury of tendon by body region. These conditions are not included in M66 but can be coded together if the patient has both conditions.

M662026

Excludes212Not included here

Notes1Additional information

Includes1Included conditions

Is M66 a billable ICD-10 code?

What does ICD-10 code M66 mean?

When was ICD-10 code M66 introduced?

What is the parent category for ICD-10 code M66?

What conditions should be coded separately from M66?