P61.1 Polycythemia neonatorum

Billable ICD-10-CM code, FY2026.

Applies from P61 Other perinatal hematological disorders

Excludes1 (never code together)

• transient hypogammaglobulinemia of infancy (D80.7)

MS-DRG index

Defines the logic of DRG(s) 794 in MDC 15.

Approximate ICD-9-CM (GEMs)

• 776.4 Polycythemia neonatorum

Code annotations containing back-references to P61.1

Back-references to P61.1

• Type 1 Excludes: D75.1 Secondary polycythemia ("polycythemia neonatorum (P61.1)")
• Type 1 Excludes: R71 Abnormality of red blood cells ("polycythemia neonatorum (P61.1)")

Diagnosis Index entries for P61.1

• Plethora › newborn
• Polycythemia (secondary) › due to › donor twin
• Polycythemia (secondary) › due to › maternal-fetal transfusion
• Polycythemia (secondary) › neonatorum
• Syndrome › hypertransfusion, newborn

Nearby codes

• P61 Other perinatal hematological disorders
• P61.0 Transient neonatal thrombocytopenia
• P61.1 Polycythemia neonatorum (this code)
• P61.2 Anemia of prematurity
• P61.3 Congenital anemia from fetal blood loss
• P61.4 Other congenital anemias, not elsewhere classified
• P61.5 Transient neonatal neutropenia
• P61.6 Other transient neonatal disorders of coagulation