E13.44 ICD-10-CM Code: Other specified diabetes mellitus with diabetic amyotrophy
E13.44 maps to CMS-HCC V28 37 (RAF 0.166). Documentation must support MEAT. MEAT criteria · RAF calculator · HCC coding software
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 / Endocrine, nutritional and metabolic diseases (E00-E89) / Diabetes mellitus (E08-E13)
E13.44
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceOther specified diabetes mellitus with diabetic amyotrophy
A type of diabetes (not type 1 or type 2) causing muscle weakness and wasting, typically in the shoulders, hips, or thighs.
Buddy Insight
E13.
CMS-HCC V28
MappedHCC 37
RAF 0.166
CMS-HCC V24
MappedHCC 18
RAF 0.302
ACA/HHS
MappedHCC 20
Varies by metal level
ESRD/PACE
MappedHCC 18
RAF 0.084
RXHCC
MappedHCC 30
RAF 0.495
Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for E13.44 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for E13.44 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for E13.44 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for E13.44 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for E13.44 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for E13.44 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for E13.44 in this effective period.
Buddy Documentation Tip
MEAT Support
Audit Caution
Common Mistakes
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 E13.44 an HCC code?
Yes. E13.44 (Other specified diabetes mellitus with diabetic amyotrophy) maps to Diabetes with Chronic Complications under the CMS-HCC V28 risk adjustment model (and Diabetes with Chronic Complications under V24), with a community non-dual aged RAF of 0.166. It is billable for payment year 2026.
Coder answer: E13.44 is billable and maps to V28 HCC 37, Diabetes with Chronic Complications. Open it in the Code Book for the tabular path, RAF, and MEAT checklist.
- Code
- E13.44
- Description
- Other specified diabetes mellitus with diabetic amyotrophy
- HCC (V28)
- HCC 37 — Diabetes with Chronic Complications
- RAF
- 0.166
- Billable
- Yes
- Payment year
- 2026
HCC Category Mapping
Each model's RAF is its CMS base weight for that model's standard population, so weights are not directly comparable across models: CMS-HCC V28 and V24 use Community, Non-Dual, Aged; ESRD uses the dialysis continuing-enrollee model; RxHCC is the Part D continuing-enrollee, non-low-income, aged weight (a larger scale than CMS-HCC). ACA/HHS has no single weight — it varies by metal level. Actual per-patient RAF contribution depends on member segment, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains in use during the transition and for historical data.
Work E13.44 in the Code Book — tabular path, V28 RAF, and MEAT checklist →
MEAT Criteria for E13.44
For E13.44 to count as a valid HCC diagnosis in a given encounter, the provider's documentation must show MEAT: Monitor, Evaluate, Assess, or Treat. A diagnosis from a prior year does not carry forward automatically, it has to be re-documented and supported each calendar year.
- MMonitor: signs, symptoms, disease progression, or lab trending documented in the note
- EEvaluate: test results, medication response, or physical findings reviewed by the provider
- AAssess: explicit mention in the assessment or plan with acknowledgment of status
- TTreat: medication, referral, procedure, therapy, or counseling tied to the diagnosis
Only one of M/E/A/T is required to support the code, but the documentation must be specific enough to show that the provider actually addressed E13.44 during that encounter, not just copy-forwarded from a problem list.
Coder workflow notes
Get the V28 RAF + MEAT cheat sheet
One printable page: confirm a code's V28 HCC status, its RAF weight, and the MEAT your note needs to make it stick. Free, no card.
Free PDF. No card. Unsubscribe anytime.
What This Code Means
E13.44 is the ICD-10-CM diagnosis code for other specified diabetes mellitus with diabetic amyotrophy. A type of diabetes (not type 1 or type 2) causing muscle weakness and wasting, typically in the shoulders, hips, or thighs. E13.44 sits in the ICD-10-CM chapter for endocrine, nutritional and metabolic diseases (e00-e89), within the section covering diabetes mellitus (e08-e13).
Under the CMS-HCC V28 risk adjustment model, E13.44 maps to Diabetes with Chronic Complications (HCC 37) with a community, non-dual, aged base RAF weight of 0.166. Under the older V24 model, E13.44 mapped to the same category but with a base RAF weight of 0.302, V28 recalibrated weights across the entire model. V28 is the CMS-HCC risk adjustment model that reached 100% phase-in for payment year 2026, replacing V24 which was used during the PY2024–PY2025 transition.
Verify the condition is documented as amyotrophy (muscle wasting) rather than other neuropathies. Because E13.44 maps to a payment HCC, the provider's documentation must satisfy MEAT criteria (Monitor, Evaluate, Assess, or Treat) for the encounter to count toward the patient's Medicare Advantage risk adjustment score. When documentation is ambiguous, coders should issue a provider query rather than assume the highest-specificity variant.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for E13.44 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Verify the condition is documented as amyotrophy (muscle wasting) rather than other neuropathies
- •Note that this is a specific form of diabetic neuropathy affecting muscle tissue
Clinical Significance
E13.44 captures diabetic amyotrophy in other specified diabetes mellitus, a relatively uncommon but debilitating form of diabetic neuropathy. Diabetic amyotrophy presents with severe, asymmetric proximal lower extremity pain and weakness (often in the thigh), muscle wasting, and weight loss. It is thought to be immune-mediated and may improve with glycemic control.
Documentation Requirements
- ✓The provider must document secondary diabetes and specifically diagnose diabetic amyotrophy (also known as diabetic lumbosacral radiculoplexus neuropathy or Bruns-Garland syndrome).
- ✓Clinical findings of proximal muscle weakness, atrophy, and pain with electrodiagnostic confirmation should be documented.