ICD-10-CM Code Q07.9

Congenital malformation of nervous system, unspecified

Version 2020 Billable Code POA Exempt

Valid for Submission

Q07.9 is a billable code used to specify a medical diagnosis of congenital malformation of nervous system, unspecified. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code Q07.9 might also be used to specify conditions or terms like cerebrofacial dysplasia, combined malformation of central nervous system and skeletal muscle, congenital anomaly of central nervous system, congenital anomaly of nervous system, congenital anomaly of nervous system of head/neck, congenital anomaly of neural structure of trunk, etc The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.

ICD-10:Q07.9
Short Description:Congenital malformation of nervous system, unspecified
Long Description:Congenital malformation of nervous system, 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 Q07.9:

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.
  • Congenital anomaly NOS of nervous system
  • Congenital deformity NOS of nervous system
  • Congenital disease or lesion NOS of nervous system

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 Q07.9 are found in the index:


Synonyms

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

  • Cerebrofacial dysplasia
  • Combined malformation of central nervous system and skeletal muscle
  • Congenital anomaly of central nervous system
  • Congenital anomaly of nervous system
  • Congenital anomaly of nervous system of head/neck
  • Congenital anomaly of neural structure of trunk
  • Congenital anomaly of peripheral nerve
  • Congenital anomaly of the peripheral nervous system
  • Congenital hepatic fibrosis
  • Congenital malformation of autonomic nervous system
  • Congenital malformation of the meninges
  • Congenital polyneuropathy
  • Crome syndrome
  • Cyprus facial neuromusculoskeletal syndrome
  • Early secondary malformation of the central nervous system
  • Ectodermal dysplasia, intellectual disability, central nervous system malformation syndrome
  • Encephalopathy, hypertrophic cardiomyopathy, renal tubular disease syndrome
  • FBLN1-related developmental delay, central nervous system anomaly, syndactyly syndrome
  • Fetus with central nervous system malformation
  • Fetus with central nervous system malformation - delivered
  • Immature autonomic system
  • Late secondary abnormalities of the central nervous system
  • Muscle eye brain disease
  • Muscle-eye-brain disease, congenital muscular dystrophy
  • Neural tube defect
  • Neurodevelopmental disorder of fetus
  • Neurofaciodigitorenal syndrome
  • NPHP3-related Meckel-like syndrome
  • Pili torti
  • Pili torti with developmental delay and neurological abnormality syndrome
  • SCALP syndrome
  • Sebaceous nevus
  • Vascular malformation of the nervous system

Present on Admission (POA)

Q07.9 is exempt from POA reporting - The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement. Review other POA exempt codes here .

CMS POA Indicator Options and Definitions
POA Indicator CodePOA Reason for CodeCMS will pay the CC/MCC DRG?
YDiagnosis was present at time of inpatient admission.YES
NDiagnosis was not present at time of inpatient admission.NO
UDocumentation insufficient to determine if the condition was present at the time of inpatient admission.NO
WClinically undetermined - unable to clinically determine whether the condition was present at the time of inpatient admission.YES
1Unreported/Not used - Exempt from POA reporting. NO

Convert Q07.9 to ICD-9

  • 742.9 - Nervous system anom NOS (Approximate Flag)

Code Classification

  • Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • Congenital malformations of the nervous system (Q00-Q07)
      • Other congenital malformations of nervous system (Q07)

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


Brain Malformations

Most brain malformations begin long before a baby is born. Something damages the developing nervous system or causes it to develop abnormally. Sometimes it's a genetic problem. In other cases, exposure to certain medicines, infections, or radiation during pregnancy interferes with brain development. Parts of the brain may be missing, abnormally small or large, or not fully developed.

Treatment depends upon the problem. In many cases, treatment only helps with symptoms. It may include antiseizure medicines, shunts to drain fluid from the brain, and physical therapy.

There are head malformations that do not involve the brain. Craniofacial disorders are the result of abnormal growth of soft tissue and bones in the face and head. It's common for new babies to have slightly uneven heads, but parents should watch the shape of their baby's head for possible problems.

NIH: National Institute of Neurological Disorders and Stroke


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Neural Tube Defects

Neural tube defects are birth defects of the brain, spine, or spinal cord. They happen in the first month of pregnancy, often before a woman even knows that she is pregnant. The two most common neural tube defects are spina bifida and anencephaly. In spina bifida, the fetal spinal column doesn't close completely. There is usually nerve damage that causes at least some paralysis of the legs. In anencephaly, most of the brain and skull do not develop. Babies with anencephaly are usually either stillborn or die shortly after birth. Another type of defect, Chiari malformation, causes the brain tissue to extend into the spinal canal.

The exact causes of neural tube defects aren't known. You're at greater risk of having an infant with a neural tube defect if you

  • Have obesity
  • Have poorly controlled diabetes
  • Take certain antiseizure medicines

Getting enough folic acid, a type of B vitamin, before and during pregnancy prevents most neural tube defects.

Neural tube defects are usually diagnosed before the infant is born, through lab or imaging tests. There is no cure for neural tube defects. The nerve damage and loss of function that are present at birth are usually permanent. However, a variety of treatments can sometimes prevent further damage and help with complications.

NIH: National Institute of Child Health and Human Development


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Spinal Cord Diseases

Your spinal cord is a bundle of nerves that runs down the middle of your back. It carries signals back and forth between your body and your brain. It is protected by your vertebrae, which are the bone disks that make up your spine. If you have an accident that damages the vertebrae or other parts of the spine, this can also injure the spinal cord. Other spinal cord problems include

  • Tumors
  • Infections such as meningitis and polio
  • Inflammatory diseases
  • Autoimmune diseases
  • Degenerative diseases such as amyotrophic lateral sclerosis and spinal muscular atrophy

Symptoms vary but might include pain, numbness, loss of sensation and muscle weakness. These symptoms can occur around the spinal cord, and also in other areas such as your arms and legs. Treatments often include medicines and surgery.


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