2017/18 ICD-10-CM Diagnosis Code Q04.9

Congenital malformation of brain, unspecified

Applicable To
  • Congenital anomaly NOS of brain
  • Congenital deformity NOS of brain
  • Congenital disease or lesion NOS of brain
  • Multiple anomalies NOS of brain, congenital
The following code(s) above Q04.9 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to Q04.9:
  • Q00-Q99
    2018 ICD-10-CM Range Q00-Q99

    Congenital malformations, deformations and chromosomal abnormalities

    Note
    • Codes from this chapter are not for use on maternal or fetal records
    Type 2 Excludes
    • inborn errors of metabolism (E70-E88)
    Congenital malformations, deformations and chromosomal abnormalities
  • Q04
    ICD-10-CM Diagnosis Code Q04

    Other congenital malformations of brain

      2016 2017 2018 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Other congenital malformations of brain
Approximate Synonyms Clinical Information Present On Admission
POA Help
"Present On Admission" is defined as present at the time the order for inpatient admission occurs — conditions that develop during an outpatient encounter, including emergency department, observation, or outpatient surgery, are considered POA.
ICD-10-CM Q04.9 is grouped within Diagnostic Related Group(s) (MS-DRG v35.0):

Convert Q04.9 to ICD-9-CM

Code History

Diagnosis Index entries containing back-references to Q04.9:

ICD-10-CM Codes Adjacent To Q04.9
Q03.9 Congenital hydrocephalus, unspecified
Q04 Other congenital malformations of brain
Q04.0 Congenital malformations of corpus callosum
Q04.1 Arhinencephaly
Q04.2 Holoprosencephaly
Q04.3 Other reduction deformities of brain
Q04.4 Septo-optic dysplasia of brain
Q04.5 Megalencephaly
Q04.6 Congenital cerebral cysts
Q04.8 Other specified congenital malformations of brain
Q04.9 Congenital malformation of brain, unspecified
Q05 Spina bifida
Q05.0 Cervical spina bifida with hydrocephalus
Q05.1 Thoracic spina bifida with hydrocephalus
Q05.2 Lumbar spina bifida with hydrocephalus
Q05.3 Sacral spina bifida with hydrocephalus
Q05.4 Unspecified spina bifida with hydrocephalus
Q05.5 Cervical spina bifida without hydrocephalus
Q05.6 Thoracic spina bifida without hydrocephalus
Q05.7 Lumbar spina bifida without hydrocephalus
Q05.8 Sacral spina bifida without hydrocephalus

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.