ICD-10-CM 2027
ICD-10 code for neonatal hemochromatosis
From the official ICD-10-CM alphabetic index entry “Hemochromatosis › neonatal”. Page updated September 29, 2026.
About coding neonatal hemochromatosis
The ICD-10-CM code for neonatal hemochromatosis is P78.84 (Gestational alloimmune liver disease).
Within P78.8 (other specified perinatal digestive system disorders), P78.84 is specifically for gestational alloimmune liver disease. Related codes cover congenital cirrhosis (of liver) (P78.81), peptic ulcer of newborn (P78.82), newborn esophageal reflux (P78.83) and other specified perinatal digestive system disorders (P78.89).
Don't report P78.84 together with the conditions in its Excludes1 note: hemochromatosis (E83.11-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for P78.84)
- hemochromatosis (E83.11-)
Common questions about neonatal hemochromatosis ICD-10 codes
What is the ICD-10 code for neonatal hemochromatosis?
- P78.84 — Gestational alloimmune liver disease.
Is P78.84 billable?
- Yes. P78.84 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can P78.84 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict P78.84 as a principal diagnosis.
Is P78.84 a CC or MCC?
- No. P78.84 is neither a CC nor an MCC under MS-DRG v44.0.