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2. ICD-10 Codes
3. Chapter - P00-P96
4. Section - P50-P61
5. Category - P55
6. P55.1

P55.1 - ABO isoimmunization of newborn

• Applicable to ABO isoimmunization of newborn
• The 2025 edition of ICD10-CM P55.1 became effective on October 1, 2024.
• This is the American ICD10-CM version of P55.1 - other international versions of ICD10 P55.1 may differ.
• P55.1 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

The following codes above P55.1 contain annotation back-references that may be applicable to P55.1:

• Chapter: P00-P96 - Certain conditions originating in the perinatal period
• Section: P50-P61 - Hemorrhagic and hematological disorders of newborn
• Category: P55 - Hemolytic disease of newborn

Browse other similar CM codes:

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.