2027 ICD-10-CM Diagnosis Code P50.5Newborn affected by intrauterine (fetal) blood loss from cut end of co-twin's cord

ICD-10-CM Codes›P00–P96›P50-P61›fetal

ICD-10-CM P50.5
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

P50.5 is a billable ICD-10-CM diagnosis code for newborn affected by intrauterine (fetal) blood loss from cut end of co-twin's cord. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 791, 793. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Hemorrhagic and hematologic disorders of newborn.

Code Identity

ICD-10-CM Code
P50.5
Billable Status
Yes — Valid for Submission
Code Describes
Newborn affected by intrauterine (fetal) blood loss from cut end of co-twin's cord
Short Description
NB aff by uterin blood loss from cut end of co-twin's cord
Parent Code
P50
Newborn affected by intrauterine (fetal) blood loss

Code Classification

ChapterP00–P96Certain conditions originating in the perinatal period
SectionP50-P61Hemorrhagic and hematological disorders of newborn
CategoryfetalNewborn affected by intrauterine blood loss (P50)
This CodeP50.5Newborn affected by intrauterine (fetal) blood loss from cut end of co-twin's cord

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to P50.5: its own notes plus those printed at P50, block P50-P61, and Chapter 16. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Chapter 16 (P00-P96) Certain conditions originating in the perinatal period applies to 463 codes
  • conditions that have their origin in the fetal or perinatal period (before birth through the first 28 days after birth) even if morbidity occurs later

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From P50 Newborn affected by intrauterine (fetal) blood loss applies to 8 codes
  • congenital anemia from intrauterine (fetal) blood loss (P61.3)
From Block P50-P61 Hemorrhagic and hematological disorders of newborn applies to 67 codes
  • congenital stenosis and stricture of bile ducts (Q44.3)
  • Crigler-Najjar syndrome (E80.5)
  • Dubin-Johnson syndrome (E80.6)
  • Gilbert syndrome (E80.4)
  • hereditary hemolytic anemias (D55-D58)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 16 (P00-P96) Certain conditions originating in the perinatal period applies to 463 codes
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • tetanus neonatorum (A33)

Notes

General instructions on how these codes are used.

From Chapter 16 (P00-P96) Certain conditions originating in the perinatal period applies to 463 codes
  • Codes from this chapter are for use on newborn records only, never on maternal records

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name P50.5, its category, or a range that includes it.

Excludes1 2

These codes carry an Excludes1 note naming P50.5: they are not reported together with it, unless the two conditions are unrelated.

  • P51 Umbilical hemorrhage of newborn
    umbilical hemorrhage from cut end of co-twins cord (P50.5)
  • P54 Other neonatal hemorrhages
    newborn affected by (intrauterine) blood loss (P50.-) names P50.-, which includes this code

Excludes2 1

These codes carry an Excludes2 note naming P50.5: its condition is not part of those codes, and both may be reported when the patient has both.

  • Block R70-R79 Abnormal findings on examination of blood, without diagnosis
    hemorrhagic and hematological disorders of newborn (P50-P61) names P50-P61, which includes this code

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

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Convert P50.5 to ICD-9-CMHistory

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

ICD-9-CM
772.0 NB fetal blood loss NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About P50.5Overview

Is P50.5 (Newborn affected by intrauterine (fetal) blood loss) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report newborn affected by intrauterine (fetal) blood loss from cut end of co-twin's cord on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does P50.5 group to?

When newborn affected by intrauterine (fetal) blood loss from cut end of co-twin's cord is the principal diagnosis on an inpatient stay, it groups to MS-DRG 793, 791, with relative weights from 4.1073 to 4.2192 depending on complications. Higher weights mean higher Medicare reimbursement.

Can P50.5 be reported with P61.3?

Not as a rule. The Excludes1 note at P50, which applies to P50.5, lists "congenital anemia from intrauterine (fetal) blood loss (P61.3)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

What is the ICD-9 equivalent of P50.5?

Under the General Equivalence Mappings, newborn affected by intrauterine (fetal) blood loss from cut end of co-twin's cord converts to ICD-9-CM 772.0 (NB fetal blood loss NEC). The mapping is approximate, so confirm the match fits the documentation.