2027 ICD-10-CM Diagnosis Code P80.8Other hypothermia of newborn

ICD-10-CM Codes›P00–P96›P80-P83›P80

ICD-10-CM P80.8
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

P80.8 is a billable ICD-10-CM diagnosis code for other hypothermia of newborn. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 794. Coders also document this condition as hypothermia. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified perinatal conditions.

Code Identity

ICD-10-CM Code
P80.8
Billable Status
Yes — Valid for Submission
Code Describes
Other hypothermia of newborn
Short Description
Other hypothermia of newborn
Same as the full description in the CMS dataset.
Parent Code
P80
Hypothermia of newborn

Code Classification

ChapterP00–P96Certain conditions originating in the perinatal period
SectionP80-P83Conditions involving the integument and temperature regulation of newborn
CategoryP80Hypothermia of newborn
This CodeP80.8Other hypothermia of newborn

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Hypothermia
  • Hypothermia - accidental
  • Hypothermia caused by cold environment
  • Hypothermia not associated with low environmental temperature
  • Induced hypothermia
  • Neonatal environmental hypothermia

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to P80.8: its own notes plus those printed at 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

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Mild hypothermia of newborn

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 P80.8, its category, or a range that includes it.

Excludes1 3

These codes carry an Excludes1 note naming P80.8: they are not reported together with it, unless the two conditions are unrelated.

  • P80.0 Cold injury syndrome
    mild hypothermia of newborn (P80.8)
  • R68.0 Hypothermia, not associated with low environmental temperature
    newborn hypothermia (P80.-) names P80.-, which includes this code
  • T68 Hypothermia
    hypothermia of newborn (P80.-) names P80.-, 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 PNL013
Other specified and unspecified perinatal conditions
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Hypothermia

Cold weather can affect your body in different ways. You can get frostbite, which is an injury to the body that is caused by freezing. Your body can also lose heat faster than you can produce it. That can cause hypothermia, or abnormally low body temperature. It can make you sleepy, confused, and clumsy.

Read the full article at MedlinePlus

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

Convert P80.8 to ICD-9-CMHistory

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

ICD-9-CM
778.3 NB hypothermia 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 P80.8Overview

What is the ICD-10 code for other hypothermia of newborn?

The ICD-10-CM code for other hypothermia of newborn is P80.8 (sometimes written as P808). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is P80.8 (Hypothermia of newborn) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other hypothermia of newborn on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does P80.8 group to?

When other hypothermia of newborn is the principal diagnosis on an inpatient stay, it groups to MS-DRG 794 (neonate with Other Significant Problems), which carries a relative weight of 1.4934. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of P80.8?

Under the General Equivalence Mappings, other hypothermia of newborn converts to ICD-9-CM 778.3 (NB hypothermia NEC). The mapping is approximate, so confirm the match fits the documentation.