2026 ICD-10-CM Diagnosis Code P61.2Anemia of prematurity

ICD-10-CM Codes›P00–P96›P50-P61›P61

ICD-10-CM P61.2
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

P61.2 is a billable ICD-10-CM diagnosis code for anemia of prematurity. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 791, 793. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 91 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Hemorrhagic and hematologic disorders of newborn.

Code Identity

ICD-10-CM Code
P61.2
Billable Status
Yes — Valid for Submission
Code Describes
Anemia of prematurity
Short Description
Anemia of prematurity
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 CodeP61.2Anemia of prematurity

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Anemia of prematurity
  • Megaloblastic anemia due to folate deficiency in prematurity
  • Megaloblastic anemia of premature infant
  • Neonatal anemia

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

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

Patient EducationClinical

Anemia

If you have anemia, your blood does not carry enough oxygen to the rest of your body. The most common cause of anemia is not having enough iron. Your body needs iron to make hemoglobin. Hemoglobin is an iron-rich protein that gives the red color to blood. It carries oxygen from the lungs to the rest of the body.

Read the full article at MedlinePlus

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

Convert P61.2 to ICD-9-CMHistory

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

ICD-9-CM
776.6 Anemia of prematurity
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 P61.2Overview

What is the ICD-10 code for anemia of prematurity?

The ICD-10-CM code for anemia of prematurity is P61.2 (sometimes written as P612). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Is P61.2 (Other perinatal hematological disorders) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report anemia of prematurity on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does P61.2 group to?

When anemia of prematurity is the principal diagnosis on an inpatient stay, it groups to MS-DRG 791, 793, with relative weights from 4.0590 to 4.1696 depending on complications. Higher weights mean higher Medicare reimbursement.

Is P61.2 a CC or MCC?

CMS lists P61.2 as a CC (complication or comorbidity) for FY 2026. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 91 closely related codes in its exclusion list.

What is the ICD-9 equivalent of P61.2?

Under the General Equivalence Mappings, anemia of prematurity converts to ICD-9-CM 776.6 (anemia of prematurity). The mapping is a direct match.