D75.1 ICD-10-CM Code: Secondary polycythemia
D75.1 is not a CMS-HCC payment code. MEAT criteria · RAF calculator · HCC coding software
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FY 2026 Apr update / Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89) / Other disorders of blood and blood-forming organs (D70-D77)
D75.1
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceSecondary polycythemia
An acquired condition where the body produces too many red blood cells in response to another disease or condition, such as chronic lung disease or kidney disease.
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
Official- Acquired polycythemia
- Emotional polycythemia
- Erythrocytosis NOS
- Hypoxemic polycythemia
- Nephrogenous polycythemia
Excludes 2
Official- acute lymphadenitis (L04.-)
- chronic lymphadenitis (I88.1)
- enlarged lymph nodes (R59.-)
- hypergammaglobulinemia NOS (D89.2)
- lymphadenitis NOS (I88.9)
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for D75.1 in this effective period.
Excludes 1
Official- polycythemia neonatorum (P61.1)
- polycythemia vera (D45)
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for D75.1 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for D75.1 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for D75.1 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 D75.1 an HCC code?
No. D75.1 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- D75.1
- Description
- Secondary polycythemia
- 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
D75.1 is the ICD-10-CM diagnosis code for secondary polycythemia. An acquired condition where the body produces too many red blood cells in response to another disease or condition, such as chronic lung disease or kidney disease. D75.1 sits in the ICD-10-CM chapter for diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (d50-d89), within the section covering other disorders of blood and blood-forming organs (d70-d77).
D75.1 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.
Always identify and code the underlying cause of secondary polycythemia (e.g., hypoxia, renal disease, or malignancy).
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for D75.1 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Always identify and code the underlying cause of secondary polycythemia (e.g., hypoxia, renal disease, or malignancy)
- •Distinguish from familial erythrocytosis (D75.0) which is inherited rather than acquired