P55.9 – Hemolytic disease of newborn, unspecified
ICD-10-CM 2027 diagnosis code · Hemorrhagic and hematological disorders of newborn
ICD-10-CM code
P55.9
- Code
P55.9(claims format:P559)- Description
- Hemolytic disease of newborn, unspecified
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 16. Certain conditions originating in the perinatal period (P00-P96)
- Block
- P50-P61 Hemorrhagic and hematological disorders of newborn
- Parent codes
- P55
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block P50-P61
Index terms for P55.9
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Erythroblastosis
- Disease, diseased, hemolytic
- Isoimmunization NEC, newborn
- Anemia, erythroblastic, newborn
- Anemia, congenital, due to isoimmunization NOS
- Jaundice, newborn, due to or associated with, hemolytic disease
- Jaundice, newborn, due to or associated with, isoimmunization NOS
- Jaundice, newborn, due to or associated with, incompatibility, maternal/fetal NOS
Related codes in P55
Frequently asked questions
What is ICD-10 code P55.9?
P55.9 is the ICD-10-CM code for hemolytic disease of newborn, unspecified, in the block P50-P61 (Hemorrhagic and hematological disorders of newborn).
Is P55.9 a billable code?
Yes. P55.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does P55.9 belong to?
It belongs to category P55 – Hemolytic disease of newborn.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.