ICD-10-CM Code P05.9

Newborn affected by slow intrauterine growth, unspecified

Version 2020 Billable Code

Valid for Submission

P05.9 is a billable code used to specify a medical diagnosis of newborn affected by slow intrauterine growth, unspecified. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code P05.9 might also be used to specify conditions or terms like abnormal fetus, condition in fetus originating in the perinatal period, condition of fetal growth and/or malnutrition, fetal growth abnormality, finding of fetal growth, immature fetus, etc

Short Description:Newborn affected by slow intrauterine growth, unspecified
Long Description:Newborn affected by slow intrauterine growth, unspecified

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code P05.9:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Newborn affected by fetal growth retardation NOS

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code P05.9 are found in the index:


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Abnormal fetus
  • Condition in fetus originating in the perinatal period
  • Condition of fetal growth AND/OR malnutrition
  • Fetal growth abnormality
  • Finding of fetal growth
  • Immature fetus
  • Impaired fetal development
  • Intrauterine growth restriction, metaphyseal dysplasia, adrenal hypoplasia congenita, and genital anomaly syndrome
  • Neonatal polycythemia
  • Neonatal polycythemia due to intra-uterine growth retardation
  • Poor clinical fetal growth
  • Slow fetal growth AND/OR fetal malnutrition

Convert P05.9 to ICD-9

  • 764.90 - Fet growth retard wtNOS (Approximate Flag)

Code Classification

  • Certain conditions originating in the perinatal period (P00–P96)
    • Disorders of newborn related to length of gestation and fetal growth (P05-P08)
      • Disord of NB related to slow fetal growth and fetal malnut (P05)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients

Uncommon Infant and Newborn Problems

It can be scary when your baby is sick, especially when it is not an everyday problem like a cold or a fever. You may not know whether the problem is serious or how to treat it. If you have concerns about your baby's health, call your health care provider right away.

Learning information about your baby's condition can help ease your worry. Do not be afraid to ask questions about your baby's care. By working together with your health care provider, you make sure that your baby gets the best care possible.

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