ICD-10 M23.52
Billable / SpecificChronic instability of knee, left knee
About ICD-10-CM M23.52
ICD-10-CM code M23.52 represents Chronic instability of knee, left knee. This is a billable/specific code in the Musculoskeletal and Connective Tissue chapter (block M23). The 2026 edition of ICD-10-CM M23.52 became effective on October 1, 2025.
Medicare LCD Coverage for M23.52
Local Coverage Determinations (LCDs) from CMS MACs that list M23.52 as a covered diagnosis.
Showing top 10 of 132 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing M23.52.
5 Medicare
1 Aetna
CPT Codes Commonly Billed with M23.52
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Convert M23.52 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| M23.52 | 71785 | 10000 |
| M23.52 | 71886 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To M23.52
Other codes in section M20-M25 (Other joint disorders).
ICD-10 M23.52, Billing FAQ
Is ICD-10 code M23.52 billable? +
Yes, M23.52 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What ICD-9 codes does M23.52 map to? +
Per CMS GEMs, M23.52 maps to ICD-9 codes: 71785, 71886. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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