ICD-10 D46.A
Billable / Specific HCC v28: 46Refractory cytopenia with multilineage dysplasia
About ICD-10-CM D46.A
ICD-10-CM code D46.A represents Refractory cytopenia with multilineage dysplasia. This is a billable/specific code in the Neoplasms chapter (block D46). The 2026 edition of ICD-10-CM D46.A became effective on October 1, 2025.
Coding Tips for D46.A
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
D46.A is a CMS-HCC v28 risk-adjustment code (category 46). To count for the patient Risk Adjustment Factor (RAF), document the diagnosis with MEAT language each calendar year: Monitored, Evaluated, Assessed, Treated. A diagnosis on the problem list alone does not satisfy CMS RADV audit standards. Include the diagnosis in the assessment with current status and current treatment plan.
Medicare Advantage HCC Impact
Capture this diagnosis annually for accurate risk adjustment. Missed HCC captures are the #1 revenue leak in Medicare Advantage risk programs.
Medicare LCD Coverage for D46.A
Local Coverage Determinations (LCDs) from CMS MACs that list D46.A as a covered diagnosis.
Showing top 10 of 1,207 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing D46.A.
1 Cigna
5 Medicare
CPT Codes Commonly Billed with D46.A
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 88291 CMS LCD: Billing and Coding: MDS FISH CMS LCD
- 88275 CMS LCD: Billing and Coding: MDS FISH CMS LCD
- 88273 CMS LCD: Billing and Coding: MDS FISH CMS LCD
- 88274 CMS LCD: Billing and Coding: MDS FISH CMS LCD
- 88271 CMS LCD: Billing and Coding: MDS FISH CMS LCD
- 83018 CMS LCD: Billing and Coding: Heavy Metal Testing CMS LCD
- 82175 CMS LCD: Billing and Coding: Heavy Metal Testing CMS LCD
- 82108 CMS LCD: Billing and Coding: Heavy Metal Testing CMS LCD
- 84630 CMS LCD: Billing and Coding: Heavy Metal Testing CMS LCD
- 83015 CMS LCD: Billing and Coding: Heavy Metal Testing CMS LCD
Convert D46.A to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| D46.A | 23872 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To D46.A
Other codes in section D37-D48 (Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes).
ICD-10 D46.A, Billing FAQ
Is ICD-10 code D46.A billable? +
Yes, D46.A is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
Does D46.A affect Medicare Advantage HCC risk adjustment? +
Yes. D46.A maps to CMS-HCC v28 category 46. Capture this diagnosis annually for accurate Medicare Advantage risk score.
What CPT codes are commonly billed with D46.A? +
Procedures frequently paired with D46.A include: 88291, 88275, 88273, 88274, 88271.
What ICD-9 codes does D46.A map to? +
Per CMS GEMs, D46.A maps to ICD-9 codes: 23872. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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