2026 ICD-10-CM Diagnosis Code P61.8Other specified perinatal hematological disorders

ICD-10-CM Codes›P00–P96›P50-P61›P61

ICD-10-CM P61.8
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

P61.8 is a billable ICD-10-CM diagnosis code for other specified perinatal hematological disorders. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). Coders also document this condition as leukemoid reaction. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Hemorrhagic and hematologic disorders of newborn.

Code Identity

ICD-10-CM Code
P61.8
Billable Status
Yes — Valid for Submission
Code Describes
Other specified perinatal hematological disorders
Short Description
Other specified perinatal hematological disorders
Same as the full description in the CMS dataset.
Parent Code
P61
Other perinatal hematological disorders

Code Classification

ChapterP00–P96Certain conditions originating in the perinatal period
SectionP50-P61Hemorrhagic and hematological disorders of newborn
CategoryP61Other perinatal hematological disorders
This CodeP61.8Other specified perinatal hematological disorders

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Leukemoid reaction
  • Leukemoid reaction of the newborn
  • Neonatal coagulation disorder
  • Perinatal anemia

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Disorder(of)
      • hematological
        • newborn (transient)
          • specified NEC
    • Dyscrasia
      • blood (with)
        • newborn
          • specified type NEC

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR PNL011
Hemorrhagic and hematologic disorders of newborn
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Leukemoid Reaction

    a peripheral blood picture resembling that of leukemia or indistinguishable from it on the basis of morphologic appearance alone. (dorland, 27th ed)

  • Leukemoid Reaction

    a hematology test result that indicates the presence of an increased white blood cell count and increased neutrophil precursors resembling leukemia, in a peripheral blood smear.

  • Transient Leukemoid Reaction of the Newborn|Leukemoid Reaction of the Newborn|Transient Leukemoid Reaction of Newborn

    increased white blood cell count and increased neutrophil precursors resembling leukemia in a neonate or fetus. often, this is a response to medications received, infection or down syndrome.

Patient EducationClinical

Blood Disorders

Your blood is living tissue made up of liquid and solids. The liquid part, called plasma, is made of water, salts and protein. Over half of your blood is plasma. The solid part of your blood contains red blood cells, white blood cells and platelets.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert P61.8 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
776.8 Transient hemat dis NEC
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About P61.8Overview

Is P61.8 (Other perinatal hematological disorders) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other specified perinatal hematological disorders on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of P61.8?

Under the General Equivalence Mappings, other specified perinatal hematological disorders converts to ICD-9-CM 776.8 (transient hemat dis NEC). The mapping is a direct match.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.