Macrosomia ICD-10-CM Codes

Macrosomia ICD-10-CM Codes

Learn the essential ICD-10-CM codes for diagnosing and documenting cases of macrosomia, or excessive birth weight.

By Audrey Liz Perez on Aug 8, 2025.

Fact Checked by Karina Jimenea.

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What ICD-10 codes are used for macrosomia?

Macrosomia refers to a newborn significantly larger than average, often weighing more than 8 pounds, 13 ounces (4,000 grams). Accurate coding for this condition is crucial for both diagnosis and treatment, as well as for medical record-keeping and billing. The ICD-10-CM system offers specific codes for macrosomia that enable healthcare providers to classify and manage these cases efficiently.

Here are some commonly used ICD-10-CM codes for macrosomia, which are under the code range P05-P08: Disorders of newborn related to length of gestation and fetal growth, and Z00-Z99: Factors influencing health status and contact with health services:

P08.0: Exceptionally large newborn baby

This code is used when it's suspected when the newborn has macrosomia.

P00.89: Newborn affected by other maternal conditions

This code is used when it is suspected that the newborn's macrosomia is due to other suspected maternal medical conditions.

P01.9: Newborn affected by maternal complication of pregnancy, unspecified

This code is applied when it's suspected that maternal complications during pregnancy contributed to the baby's macrosomia.

P14.0: Erb's paralysis due to birth injury

This code is used when macrosomia leads to birth injury affecting the brachial plexus, commonly known as Erb's paralysis, which is associated with macrosomia.

Z36.88: Encounter for antenatal screening for fetal macrosomia

This code is used when the patient has an encounter for antenatal screening for fetal macrosomia.

Which macrosomia ICD codes are billable?

All of the aforementioned codes are billable.

Clinical information

  • Macrosomia increases the risk of complications during childbirth.
  • It may be associated with maternal diabetes or obesity.
  • The condition may necessitate a cesarean section to minimize the risk of birth injuries.
  • Post-birth, the baby may be at increased risk for low blood sugar levels.
  • Early detection and ongoing monitoring is essential, as these babies may be at higher risk for obesity and diabetes later in life.

Synonyms include

  • Large for gestational age (LGA)
  • Excessive birth weight
  • Overweight newborn
  • Gigantism in newborn
  • Fetal overgrowth

Commonly asked questions

ICD-10-CM codes for macrosomia should be used for medical documentation, clinical diagnosis, and billing purposes. They help to standardize this condition, making it easier for healthcare providers to deliver effective care.

Common treatments may include careful monitoring of the baby's blood sugar levels, possibly a cesarean section to prevent birth injuries, and ongoing pediatric care to monitor development.

A diagnosis code for macrosomia classifies the condition based on its associated complications or suspected causes. It is a standardized language for healthcare providers and is vital for accurate billing and statistical data collection.

Related ICDs

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