ICD-10-CM · Category
M23 — Internal derangement of knee
Chapter M00-M99: Diseases of the musculoskeletal system and connective tissue
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M23.0Cystic meniscusM23.2Derangement of meniscus due to old tear or injuryM23.3Other meniscus derangementsM23.4Loose body in kneeM23.5Chronic instability of kneeM23.6Other spontaneous disruption of ligament(s) of kneeM23.8Other internal derangements of kneeM23.9Unspecified internal derangement of knee
Common questions about M23 (Internal derangement of knee)
What does ICD-10 code M23 mean?
M23 is the ICD-10-CM 2025 code for Internal derangement of knee. ICD-10-CM is the medical coding system used by clinicians, hospitals and insurers worldwide to classify diseases and conditions in a standard way.
Is M23 a billable diagnosis code?
M23 is a category-level (umbrella) code rather than a billable specific code. For billing purposes, clinicians typically use a more specific sub-code under M23. Browse the sub-codes listed on this page.
Which ICD-10 chapter does M23 belong to?
M23 belongs to the chapter "Diseases of the musculoskeletal system and connective tissue" (codes M00-M99). ICD-10-CM organises codes into 22 chapters by body system or condition type, which helps clinicians navigate related diagnoses.
Where can I get plain-language information about Internal derangement of knee?
For a plain-language explanation of Internal derangement of knee, ask GoDavaii's Health AI - it explains medical conditions in 22+ Indian languages, free, with no signup. Tap "Ask GoDavaii AI about Internal derangement of knee" above to get a personalised answer.
Source: ICD-10-CM 2025 (Centers for Medicare & Medicaid Services, public domain). Codes valid from October 1, 2024. CMS source ↗