2027 ICD-10-CM Diagnosis Code P56Hydrops fetalis due to hemolytic disease

ICD-10-CM Codes›P00–P96›P50-P61›P56

ICD-10-CM P56
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

P56 is a non-billable ICD-10-CM category code for hydrops fetalis due to hemolytic disease, so it cannot be submitted on claims. Use a more specific code from this category instead, such as P56.0, P56.90, and P56.99.

Code Identity

ICD-10-CM Code
P56
Billable Status
No — Non-Billable Category
Code Describes
Hydrops fetalis due to hemolytic disease
Short Description
Hydrops fetalis due to hemolytic disease
Same as the full description in the CMS dataset.
Chapter
P50-P61
Hemorrhagic and hematological disorders of newborn

Code Classification

ChapterP00–P96Certain conditions originating in the perinatal period
SectionP50-P61Hemorrhagic and hematological disorders of newborn
CategoryP56Hydrops fetalis due to hemolytic disease
This CodeP56Hydrops fetalis due to hemolytic disease

Specific Coding for Hydrops fetalis due to hemolytic diseaseOverview

Non-specific codes like P56 require more characters. Use one of these billable codes instead:

  • Use P56.0 for Hydrops fetalis due to isoimmunization

  • P56.9 for Hydrops fetalis due to other and unspecified hemolytic disease

  • Use P56.90 for Hydrops fetalis due to unspecified hemolytic disease

  • Use P56.99 for Hydrops fetalis due to other hemolytic disease

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to P56: its own notes plus those printed at 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.

On P56 itself
  • hydrops fetalis NOS (P83.2)
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 P56, its category, or a range that includes it.

Excludes1 3

These codes carry an Excludes1 note naming P56: they are not reported together with it, unless the two conditions are unrelated.

  • P83 Other conditions of integument specific to newborn
    hydrops fetalis due to hemolytic disease (P56.-)
  • K72 Hepatic failure, not elsewhere classified
    icterus of newborn (P55-P59) names P55-P59, which includes this code
  • P58 Neonatal jaundice due to other excessive hemolysis
    jaundice due to isoimmunization (P55-P57) names P55-P57, which includes this code

Excludes2 1

These codes carry an Excludes2 note naming P56: 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

Code Also 1

These codes say P56 may also be needed to fully describe the condition. The note gives no sequencing direction.

  • K76.82 Hepatic encephalopathy
    icterus of newborn (P55-P59) names P55-P59, which includes this code

Patient EducationClinical

Edema

Edema means swelling caused by fluid in your body's tissues. It usually occurs in the feet, ankles and legs, but it can involve your entire body.

Read the full article at MedlinePlus

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

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 P56Overview

What is the ICD-10 code for hydrops fetalis due to hemolytic disease?

P56 is the ICD-10-CM category for hydrops fetalis due to hemolytic disease, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is P56 (Hydrops fetalis due to hemolytic disease) a billable code?

No. This is a category header that groups the codes for hydrops fetalis due to hemolytic disease, and headers cannot be submitted on claims. Claims for hydrops fetalis due to hemolytic disease need a more specific code from this category, such as P56.0, P56.90, and P56.99.

Can P56 be reported with P83.2?

Not as a rule. The Excludes1 note on P56 lists "hydrops fetalis NOS (P83.2)". 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).