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M23.8

Non-billable

Other internal derangements of knee

M23.8 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 M23.8X for billing.

Status
Header (non-billable)
Chapter
M00-M99
Parent
M23
Subcodes
1
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

Includes

  • •Laxity of ligament of knee
  • •Snapping knee

Frequently asked questions

What is ICD-10 code M23.8?
M23.8 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 M23.8 a billable code?
No — M23.8 is a non-billable header code. Use a more specific child code (such as M23.8X) for billing.
What are the subcodes of M23.8?
M23.8 has 1 more specific child code, including M23.8X.

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

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