Diagnosis Code

P81.9 DISTURBANCE OF TEMPERATURE REGULATION OF NEWBORN, UNSP


Code Information

Diagnosis Code: P81.9

Short Description: Disturbance of temperature regulation of newborn, unsp

Long Description: Disturbance of temperature regulation of newborn, unspecified

The code P81.9 is VALID for claim submission

Code Classification:

  • Certain conditions originating in the perinatal period (P00–P96)
    • Conditions involving the integument and temperature regulation of newborn (P80-P83)
      • Other disturbances of temperature regulation of newborn (P81)
        • P81.9 Disturbance of temperature regulation of newborn, unsp

Code Version: 2022 ICD-10-CM


Synonyms

  • Acute rise of fever
  • Biphasic fever
  • Body temperature above reference range
  • Central fever
  • Chill
  • Continuous fever
  • Disorder characterized by fever
  • Disturbance of temperature regulation of newborn
  • Falling phase of fever
  • Febrile leukopenia
  • Feeling feverish
  • Fever
  • Fever defervescence
  • Fever due to infection
  • Fever greater than 100.4 Fahrenheit
  • Fever of newborn
  • Fever with chills
  • Fever, diurnal variation
  • Feverish cold
  • Gradual fall of fever
  • Gradual rise of fever
  • Hyperthermia
  • Hyperthermia
  • Hyperthermia in newborn
  • Increased skin temperature
  • Intermittent fever
  • Irregular fever
  • Low grade pyrexia
  • Myoclonus associated with fever
  • Neurogenic hyperthermia
  • Perinatal disorder of skin and temperature regulation
  • Phase of fever - finding
  • Phase of fever - finding
  • Phase of fever - finding
  • Phase of fever - finding
  • Phase of fever - finding
  • Phase of fever - finding
  • Phase of fever - finding
  • Plateau phase of fever
  • Prolonged fever
  • Pyrexia of unknown origin
  • Pyrexia of unknown origin
  • Pyrexia of unknown origin co-occurrent with human immunodeficiency virus infection
  • Rapid fall of fever
  • Remittent fever
  • Reversed diurnal fever
  • Rising phase of fever
  • Severe fever with thrombocytopenia syndrome virus
  • Shivering or rigors
  • Slightly remittent fever
  • Staircase fever
  • Sweating fever
  • Viral fever

References to Index of Diseases and Injuries

The code P81.9 has the following ICD-10-CM references to the Index of Diseases and Injuries
  • Inclusion Terms:
    • Fever of newborn NOS

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
P81.9 Right Arrow 778.4 NB temp regulat dis NEC

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
P81 Other disturbances of temperature regulation of newborn
P81.0 Environmental hyperthermia of newborn
P81.8 Other specified disturbances of temperature regulation of newborn


This page was last updated on: 10/1/2023