2021 ICD-10-CM Diagnosis Code P91.6

Hypoxic ischemic encephalopathy [HIE]

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • P91.6 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2021 edition of ICD-10-CM P91.6 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of P91.6 - other international versions of ICD-10 P91.6 may differ.
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as P91.6. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • Neonatal cerebral depression (
    ICD-10-CM Diagnosis Code P91.4

    Neonatal cerebral depression

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Code on Newborn Record
    P91.4
    )
  • Neonatal cerebral irritability (
    ICD-10-CM Diagnosis Code P91.3

    Neonatal cerebral irritability

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Code on Newborn Record
    P91.3
    )
  • Neonatal coma (
    ICD-10-CM Diagnosis Code P91.5

    Neonatal coma

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Code on Newborn Record
    P91.5
    )
The following code(s) above P91.6 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to P91.6:
  • P00-P96
    2021 ICD-10-CM Range P00-P96

    Certain conditions originating in the perinatal period

    Includes
    • 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
    Note
    • Codes from this chapter are for use on newborn records only, never on maternal records
    Type 2 Excludes
    • 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)
    Certain conditions originating in the perinatal period
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
Code annotations containing back-references to P91.6:
  • Type 1 Excludes: P84
    ICD-10-CM Diagnosis Code P84

    Other problems with newborn

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Code on Newborn Record
    Applicable To
    • Acidemia of newborn
    • Acidosis of newborn
    • Anoxia of newborn NOS
    • Asphyxia of newborn NOS
    • Hypercapnia of newborn
    • Hypoxemia of newborn
    • Hypoxia of newborn NOS
    • Mixed metabolic and respiratory acidosis of newborn
    Type 1 Excludes
    • intracranial hemorrhage due to anoxia or hypoxia (P52.-)
    • hypoxic ischemic encephalopathy [HIE] (P91.6-)
    • late metabolic acidosis of newborn (P74.0)
ICD-10-CM Codes Adjacent To P91.6
P83.9 Condition of the integument specific to newborn, unspecified
P84 Other problems with newborn
P90 Convulsions of newborn
P91 Other disturbances of cerebral status of newborn
P91.0 Neonatal cerebral ischemia
P91.1 Acquired periventricular cysts of newborn
P91.2 Neonatal cerebral leukomalacia
P91.3 Neonatal cerebral irritability
P91.4 Neonatal cerebral depression
P91.5 Neonatal coma
P91.6 Hypoxic ischemic encephalopathy [HIE]
P91.60 …… unspecified
P91.61 Mild hypoxic ischemic encephalopathy [HIE]
P91.62 Moderate hypoxic ischemic encephalopathy [HIE]
P91.63 Severe hypoxic ischemic encephalopathy [HIE]
P91.8 Other specified disturbances of cerebral status of newborn
P91.81 Neonatal encephalopathy
P91.811 …… in diseases classified elsewhere
P91.819 …… unspecified
P91.82 Neonatal cerebral infarction
P91.821 …… right side of brain

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.