P83.2 ICD-10-CM Code: Hydrops fetalis not due to hemolytic disease
HCC Buddy Code Card
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FY 2026 Apr update / Certain conditions originating in the perinatal period (P00-P96) / Conditions involving the integument and temperature regulation of newborn (P80-P83)
P83.2
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceHydrops fetalis not due to hemolytic disease
Excessive fluid accumulation throughout a newborn's body tissues and organs that is not caused by blood type incompatibility between mother and baby.
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- Hydrops fetalis NOS
Excludes 2
Official- cradle cap (L21.0)
- diaper [napkin] dermatitis (L22)
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for P83.2 in this effective period.
Excludes 1
Official- congenital malformations of skin and integument (Q80-Q84)
- hydrops fetalis due to hemolytic disease (P56.-)
- neonatal skin infection (P39.4)
- staphylococcal scalded skin syndrome (L00)
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for P83.2 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for P83.2 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for P83.2 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 P83.2 an HCC code?
No. P83.2 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- P83.2
- Description
- Hydrops fetalis not due to hemolytic disease
- 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
P83.2 is the ICD-10-CM diagnosis code for hydrops fetalis not due to hemolytic disease. Excessive fluid accumulation throughout a newborn's body tissues and organs that is not caused by blood type incompatibility between mother and baby. P83.2 sits in the ICD-10-CM chapter for certain conditions originating in the perinatal period (p00-p96), within the section covering conditions involving the integument and temperature regulation of newborn (p80-p83).
P83.2 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.
This code excludes hydrops fetalis due to hemolytic disease; verify the cause is not hemolytic disease before assigning.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for P83.2 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •This code excludes hydrops fetalis due to hemolytic disease; verify the cause is not hemolytic disease before assigning
- •Document the underlying cause if identified (cardiac, renal, chromosomal, etc.) for more complete coding