M92.219
BillableOsteochondrosis (juvenile) of carpal lunate [Kienböck], unspecified hand
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is M92.219 an HCC code?
No. M92.219 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
M92.219 is the ICD-10-CM diagnosis code for osteochondrosis (juvenile) of carpal lunate [kienböck], unspecified hand. Kienböck disease in a child's hand where the lunate bone (a small carpal bone in the wrist) loses its blood supply and begins to break down, but the specific hand affected is not documented. M92.219 sits in the ICD-10-CM chapter for diseases of the musculoskeletal system and connective tissue (m00-m99), within the section covering chondropathies (m91-m94).
M92.219 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Attempt to determine and document which hand is affected to allow for more specific coding.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for M92.219 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Attempt to determine and document which hand is affected to allow for more specific coding
- •If laterality cannot be determined, this unspecified code is appropriate