M79.641 ICD-10-CM Code: Pain in right hand
HCC Buddy Code Card
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FY 2026 Apr update / Diseases of the musculoskeletal system and connective tissue (M00-M99) / Other soft tissue disorders (M70-M79)
M79.641
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidancePain in right hand
Pain located in the right hand, including the palm, back of hand, and wrist area on the right side.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for M79.641 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for M79.641 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for M79.641 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for M79.641 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for M79.641 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for M79.641 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for M79.641 in this effective period.
Buddy Documentation Tip
Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.
Is M79.641 an HCC code?
No. M79.641 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
Coder workflow notes
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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
M79.641 is the ICD-10-CM diagnosis code for pain in right hand. Pain located in the right hand, including the palm, back of hand, and wrist area on the right side. M79.641 sits in the ICD-10-CM chapter for diseases of the musculoskeletal system and connective tissue (m00-m99), within the section covering other soft tissue disorders (m70-m79).
M79.641 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.
Ensure documentation specifies right hand rather than fingers or wrist alone.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for M79.641 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Ensure documentation specifies right hand rather than fingers or wrist alone
- •Differentiate from carpal tunnel syndrome or other specific hand conditions if documented