M71.442 ICD-10-CM Code: Calcium deposit in bursa, left hand
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FY 2026 Apr update / Diseases of the musculoskeletal system and connective tissue (M00-M99) / Other soft tissue disorders (M70-M79)
M71.442
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceCalcium deposit in bursa, left hand
Calcium deposits have accumulated in the bursa of the left hand, causing inflammation and potential discomfort in that area.
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 M71.442 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for M71.442 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for M71.442 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for M71.442 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for M71.442 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for M71.442 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for M71.442 in this effective period.
Buddy Documentation Tip
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is M71.442 an HCC code?
No. M71.442 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- M71.442
- Description
- Calcium deposit in bursa, left hand
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF
- —
- Billable
- Yes
- Payment year
- 2026
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
M71.442 is the ICD-10-CM diagnosis code for calcium deposit in bursa, left hand. Calcium deposits have accumulated in the bursa of the left hand, causing inflammation and potential discomfort in that area. M71.442 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).
M71.442 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 'left hand' to justify this laterality code.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for M71.442 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Ensure documentation specifies 'left hand' to justify this laterality code
- •Consider occupational or activity-related causes when reviewing patient history