G72.9 ICD-10-CM Code: Myopathy, unspecified
HCC Buddy Code Card
Digital ICD-10 code-book layout with official code detail, always-visible risk models, Code Trumping, and Buddy coding guidance.
FY 2026 Apr update / Diseases of the nervous system (G00-G99) / Diseases of myoneural junction and muscle (G70-G73)
G72.9
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceMyopathy, unspecified
A muscle disease or disorder where the specific type has not been determined or identified. This is a general catch-all code for unspecified muscle conditions.
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 G72.9 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for G72.9 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for G72.9 in this effective period.
Excludes 1
Official- arthrogryposis multiplex congenita (Q74.3)
- dermatopolymyositis (M33.-)
- ischemic infarction of muscle (M62.2-)
- myositis (M60.-)
- polymyositis (M33.2.-)
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for G72.9 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for G72.9 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for G72.9 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 G72.9 an HCC code?
No. G72.9 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- G72.9
- Description
- Myopathy, unspecified
- 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
G72.9 is the ICD-10-CM diagnosis code for myopathy, unspecified. A muscle disease or disorder where the specific type has not been determined or identified. This is a general catch-all code for unspecified muscle conditions. G72.9 sits in the ICD-10-CM chapter for diseases of the nervous system (g00-g99), within the section covering diseases of myoneural junction and muscle (g70-g73).
G72.9 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.
Use G72.9 when the provider wording supports myopathy, unspecified. Check the FY2026 tabular notes and the full code path before the final code choice.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for G72.9 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Use G72.9 when the provider wording supports myopathy, unspecified. Check the FY2026 tabular notes and the full code path before the final code choice.
- •For this DOS, capture the provider's current assessment and the care action documented for myopathy, unspecified. Keep the checklist tied to the note.
- •Do not swap G72.9 with G72.0. The FY2026 tabular describes G72.0 as drug-induced myopathy. Follow the documented detail.
- •Ask Buddy to show the official notes for G72.9 or compare its code path with G72.0.