Is P55.9 a billable ICD-10 code?

Yes. P55.9 (Hemolytic disease of newborn, unspecified) is billable and can be used for insurance claims. Always verify payer-specific requirements.

P55.9 ✓ Billable

Hemolytic disease of newborn, unspecified

Q: What is ICD-10 code P55.9?

ICD-10-CM code P55.9 stands for "Hemolytic disease of newborn, unspecified". It is a billable code in the Certain Conditions Originating in the Perinatal Period chapter, effective FY2026 (Oct 1, 2025 – Sep 30, 2026).

ICD-10-CM · FY2026 · Certain Conditions Originating in the Perinatal Period

Code

P55.9

System

ICD-10-CM

Billable

Yes — valid for submission

Effective

FY2026

Chapter

Certain Conditions Originating in the Perinatal Period

Source

CMS / CDC NCHS

⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Frequently asked questions

What is ICD-10 code P55.9?

ICD-10-CM code P55.9 represents Hemolytic disease of newborn, unspecified. It is a billable diagnosis code in the Certain Conditions Originating in the Perinatal Period chapter, effective October 1, 2025 – September 30, 2026.

Is P55.9 billable?

Yes. P55.9 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.

What chapter is P55.9 in?

P55.9 belongs to the Certain Conditions Originating in the Perinatal Period chapter (P00–P96) of ICD-10-CM.

Related codes in the P55 category

P55 Hemolytic disease of newborn Non-billable P55.0 Rh isoimmunization of newborn Billable P55.1 ABO isoimmunization of newborn Billable P55.8 Other hemolytic diseases of newborn Billable

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