P56.99
BillableHydrops fetalis due to other hemolytic disease
HCC Category Mapping
V28HCC 109 — Hemolytic and Aplastic Anemias
0.291What This Code Means
Severe fluid accumulation throughout a newborn's body caused by red blood cells being destroyed due to a hemolytic disease other than the common blood type incompatibilities.
Coding Tips
- •Use this code when hydrops fetalis is due to hemolytic disease that is not isoimmunization-related; document the specific cause in the medical record
- •Consider other causes such as infections, hereditary conditions, or other blood group incompatibilities
Clinical Significance
Hydrops fetalis due to other specified hemolytic diseases represents severe systemic fluid accumulation from identified hemolytic causes other than standard isoimmunization, requiring emergency intervention and intensive care. This condition carries extremely high morbidity and mortality risk despite having a specified underlying hemolytic etiology.
Documentation Requirements
- ✓Clinical evidence of generalized edema and fluid accumulation
- ✓Documentation of specific hemolytic disease causing hydrops
- ✓Laboratory confirmation of severe anemia and hemolysis
- ✓Imaging studies showing systemic fluid accumulation
- ✓Identification of specific hemolytic etiology (not ABO/Rh)
- ✓Assessment of cardiovascular compromise and heart failure
- ✓Treatment plan addressing both hydrops and underlying hemolysis
- ✓Specialized neonatal intensive care coordination
Commonly Confused Codes
P56.0 — Hydrops fetalis due to isoimmunization (standard immune vs other hemolytic)P56.90 — Hydrops fetalis due to unspecified hemolytic disease (specified vs unspecified)P83.2 — Hydrops fetalis not due to hemolytic disease (hemolytic vs non-hemolytic)P55.8 — Other hemolytic diseases of newborn (hemolysis without hydrops)P29.0 — Neonatal cardiac failure (primary cardiac vs secondary to severe anemia)
Code Hierarchy
└P56Hydrops fetalis due to hemolytic disease└P56.9Hydrops fetalis due to other and unspecified hemolytic disease└P56.99Hydrops fetalis due to other hemolytic disease
└P56.99Hydrops fetalis due to other hemolytic disease