U.S. ICD-10-CM · FY 2027

P55 ICD-10-CM Code: Hemolytic disease of newborn

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

P55

Hemolytic disease of newborn

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where P55 sits

  1. 1

    Chapter 16

    Certain conditions originating in the perinatal period (P00-P96)

  2. 2

    Section

    Hemorrhagic and hematological disorders of newborn (P50-P61)

  3. 3

    Category P55

    Hemolytic disease of newborn

  4. 4

    Code P55

    Hemolytic disease of newborn

More specific choices

Codes under P55

P55 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for P55.

Code first

No “code first” instruction is listed for P55.

Use additional code

No “use additional code” instruction is listed for P55.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for P55.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for P55.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code P55 mean?

P55 is the FY 2027 U.S. ICD-10-CM code for “Hemolytic disease of newborn.”

Is P55 a billable or specific ICD-10-CM code?

No. P55 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is P55 located in ICD-10-CM?

P55 is listed in Chapter 16, Certain conditions originating in the perinatal period (P00-P96), within Hemorrhagic and hematological disorders of newborn (P50-P61) (P50–P61), under category P55, Hemolytic disease of newborn.

What coding notes are listed for P55?

No inclusion terms are listed for P55 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

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