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M66.83

Non-billable

Spontaneous rupture of other tendons, forearm

M66.83 is the ICD-10-CM code for Spontaneous rupture of other tendons, forearm. It is a non-billable category code — use a more specific child code such as M66.831 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Parent
M66.8
Subcodes
3
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code M66.83?
M66.83 is the ICD-10-CM code for "Spontaneous rupture of other tendons, forearm". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M66.83 a billable code?
No — M66.83 is a non-billable header code. Use a more specific child code (such as M66.831) for billing.
What are the subcodes of M66.83?
M66.83 has 3 more specific child codes, including M66.831, M66.832, M66.839.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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