ICD-10-CM Code P94.2

Congenital hypotonia

Version 2020 Billable Code

Valid for Submission

P94.2 is a billable code used to specify a medical diagnosis of congenital hypotonia. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code P94.2 might also be used to specify conditions or terms like atypical hypotonia cystinuria syndrome, benign congenital hypotonia, congenital cataract, progressive muscular hypotonia, hearing loss, developmental delay syndrome, congenital degeneration of nervous system, congenital hypoplasia of ulna, cystinuria, etc

Short Description:Congenital hypotonia
Long Description:Congenital hypotonia

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 P94.2:

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.
  • Floppy baby syndrome, unspecified

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 P94.2 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:

  • Atypical hypotonia cystinuria syndrome
  • Benign congenital hypotonia
  • Congenital cataract, progressive muscular hypotonia, hearing loss, developmental delay syndrome
  • Congenital degeneration of nervous system
  • Congenital hypoplasia of ulna
  • Cystinuria
  • Cystinuria, type 1
  • Flaccid newborn
  • Floppy infant syndrome
  • Growth and developmental delay, hypotonia, vision impairment, lactic acidosis syndrome
  • Hypertrophic cardiomyopathy with hypotonia and lactic acidosis syndrome
  • Hypertrophic mitochondrial cardiomyopathy
  • Hypotonia, speech impairment, severe cognitive delay syndrome
  • Intellectual disability, hypotonia, brachycephaly, pyloric stenosis, cryptorchidism syndrome
  • Intellectual disability, seizures, hypotonia, ophthalmologic, skeletal anomalies syndrome
  • Lactic acidosis
  • Multiple congenital anomalies, hypotonia, seizures syndrome type 2
  • Puerto Rican infant hypotonia syndrome
  • Short ulna, dysmorphism, hypotonia, intellectual disability syndrome

Convert P94.2 to ICD-9

  • 779.89 - Perinatal condition NEC (Approximate Flag)

Code Classification

  • Certain conditions originating in the perinatal period (P00–P96)
    • Other disorders originating in the perinatal period (P90-P96)
      • Disorders of muscle tone of newborn (P94)

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

Muscle Disorders

Your muscles help you move and help your body work. Different types of muscles have different jobs. There are many problems that can affect muscles. Muscle disorders can cause weakness, pain or even paralysis.

Causes of muscle disorders include

  • Injury or overuse, such as sprains or strains, cramps or tendinitis
  • A genetic disorder, such as muscular dystrophy
  • Some cancers
  • Inflammation, such as myositis
  • Diseases of nerves that affect muscles
  • Infections
  • Certain medicines

Sometimes the cause is not known.

[Learn More]

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.

[Learn More]