P56Header code — not billable

Hydrops fetalis due to hemolytic disease

Chapter
16. Certain conditions originating in the perinatal period
Category
P56
Effective date
October 1, 2026

Related codes in category P56

P56.0Hydrops fetalis due to isoimmunizationYesP56.9Hydrops fetalis due to other and unsp hemolytic diseaseP56.90Hydrops fetalis due to unspecified hemolytic diseaseYesP56.99Hydrops fetalis due to other hemolytic diseaseYes

Frequently asked questions

What is ICD-10 code P56?

P56 is an ICD-10-CM diagnosis code for Hydrops fetalis due to hemolytic disease.

Is P56 a billable code?

No. P56 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is P56 in?

P56 falls under Chapter 16: Certain conditions originating in the perinatal period.

When did P56 become effective?

P56 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to P56?

P56 belongs to category P56, which includes 4 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.