`P55.9` Hemolytic disease of newborn, unspecified

Billable ICD-10-CM code, FY2026.

Risk adjustment (HCC)

Defines the logic of DRG(s) 791 in MDC 15.

773.2 Hemolytic disease of fetus or newborn due to other and unspecified isoimmunization (approximate)

Type 1 Excludes: D58 Other hereditary hemolytic anemias ("hemolytic anemia of the newborn (P55.-)")
Type 2 Excludes: D59.1 Other autoimmune hemolytic anemias ("hemolytic disease of newborn (P55.-)")
Type 1 Excludes: K72 Hepatic failure, not elsewhere classified ("icterus of newborn (P55-P59)")
Code Also: K76.82 Hepatic encephalopathy ("icterus of newborn (P55-P59)")
Type 1 Excludes: P58 Neonatal jaundice due to other excessive hemolysis ("jaundice due to isoimmunization (P55-P57)")
Type 1 Excludes: R17 Unspecified jaundice ("neonatal jaundice (P55, P57-P59)")
Type 1 Excludes: R71 Abnormality of red blood cells ("newborn anemia due to isoimmunization (P55.-)")
Type 1 Excludes: R76.0 Raised antibody titer ("isoimmunization affecting newborn (P55.-)")

Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › congenital › due to isoimmunization NOS
Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › erythroblastic › newborn
Disease, diseased › hemolytic (newborn)
Erythroblastosis (fetalis) (newborn)
Isoimmunization NEC › newborn
Jaundice (yellow) › newborn › due to or associated with › hemolytic disease
Jaundice (yellow) › newborn › due to or associated with › incompatibility, maternal/fetal NOS
Jaundice (yellow) › newborn › due to or associated with › isoimmunization NOS