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  6. 2024 ICD-10-CM Code P91.6
Version 2024
Non-Billable Code

2024 ICD-10-CM Diagnosis Code P91.6

Hypoxic ischemic encephalopathy [HIE]

ICD-10-CM Code:
P91.6
ICD-10 Code for:
Hypoxic ischemic encephalopathy [HIE]
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Certain conditions originating in the perinatal period
    (P00–P96)
    • Other disorders originating in the perinatal period
      (P90-P96)
      • Other disturbances of cerebral status of newborn
        (P91)

P91.6 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of hypoxic ischemic encephalopathy [hie]. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Hypoxic ischemic encephalopathy [HIE]

Non-specific codes like P91.6 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for hypoxic ischemic encephalopathy [hie]:

  • Use P91.60 for Hypoxic ischemic encephalopathy [HIE], unspecified - BILLABLE CODE

  • Use P91.61 for Mild hypoxic ischemic encephalopathy [HIE] - BILLABLE CODE

  • Use P91.62 for Moderate hypoxic ischemic encephalopathy [HIE] - BILLABLE CODE

  • Use P91.63 for Severe hypoxic ischemic encephalopathy [HIE] - BILLABLE CODE

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • Neonatal cerebral depression P91.4
  • Neonatal cerebral irritability P91.3
  • Neonatal coma P91.5

Patient Education


Brain Diseases

Your brain is the control center of your body. It controls your thoughts, memory, speech, and movement. It regulates the function of many organs. It's part of your nervous system, which also includes your spinal cord and peripheral nerves. The nervous system sends signals between your brain and the rest of the body. Your nerves take in information from your senses and send it to the brain to be processed. Your brain and nerves also communicate to help you move and to control your body's functions.

When the brain is healthy, it works quickly and automatically. But when you have a brain disease, it may affect how well you can function and do your daily activities. Some common brain diseases include:

  • Brain tumors, which can press on nerves and affect brain function.
  • Degenerative nerve diseases, which can affect many of your body's activities, such as balance, movement, talking, breathing, and heart function. Types include Alzheimer's disease and Parkinson's disease.
  • Encephalitis (inflammation in the brain), which can lead to problems such as vision loss, weakness, and paralysis.
  • Genetic brain disorders, which are caused by changes in genes (also called variants or mutations). These disorders can affect the development and function of the brain.
  • Strokes, which can cause a loss of brain cells and can affect your ability to think clearly.
  • Traumatic brain injuries (TBIs), which can affect brain function. They may range from mild to severe. The effects of a TBI may be temporary or permanent.

The symptoms of brain diseases vary widely, depending on the specific problem. In some cases, damage is permanent. In other cases, treatments such as surgery, medicines, or therapies such as physical, occupational, and speech therapies, may cure the disease or improve the symptoms.


[Learn More in MedlinePlus]

Childbirth Problems

Childbirth is the process of giving birth to a baby. It includes labor and delivery. Usually everything goes well, but problems can happen. They may cause a risk to the mother, baby, or both. Some of the more common childbirth problems include:

  • Preterm (premature) labor, when your labor starts before 37 completed weeks of pregnancy
  • Premature rupture of membranes (PROM), when your water breaks too early. If labor does not start soon afterwards, this can raise the risk of infection.
  • Problems with the placenta, such as the placenta covering the cervix, separating from the uterus before birth, or being attached too firmly to the uterus
  • Labor that does not progress, meaning that labor is stalled. This can happen when
    • Your contractions weaken
    • Your cervix does not dilate (open) enough or is taking too long to dilate
    • The baby is not in the right position
    • The baby is too big or your pelvis is too small for the baby to move through the birth canal
  • Abnormal heart rate of the baby. Often, an abnormal heart rate is not a problem. But if the heart rate gets very fast or very slow, it can be a sign that your baby is not getting enough oxygen or that there are other problems.
  • Problems with the umbilical cord, such as the cord getting caught on the baby's arm, leg, or neck. It's also a problem if cord comes out before the baby does.
  • Problems with the position of the baby, such as breech, in which the baby is going to come out feet first
  • Shoulder dystocia, when the baby's head comes out, but the shoulder gets stuck
  • Perinatal asphyxia, which happens when the baby does not get enough oxygen in the uterus, during labor or delivery, or just after birth
  • Perineal tears, tearing of your vagina and the surrounding tissues
  • Excessive bleeding, which can happen when the delivery causes tears to the uterus or if you are not able to deliver the placenta after you give birth to the baby
  • Post-term pregnancy, when your pregnancy lasts more than 42 weeks

If you have problems in childbirth, your health care provider may need to give you medicines to induce or speed up labor, use tools to help guide the baby out of the birth canal, or deliver the baby by Cesarean section.

NIH: National Institute of Child Health and Human Development


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.