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M23.8X

Non-billable

Other internal derangements of knee

M23.8X is the ICD-10-CM code for Other internal derangements of knee. It is a non-billable category code — use a more specific child code such as M23.8X1 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Parent
M23.8
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 M23.8X?
M23.8X is the ICD-10-CM code for "Other internal derangements of knee". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M23.8X a billable code?
No — M23.8X is a non-billable header code. Use a more specific child code (such as M23.8X1) for billing.
What are the subcodes of M23.8X?
M23.8X has 3 more specific child codes, including M23.8X1, M23.8X2, M23.8X9.

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

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