2019 ICD-10-CM Diagnosis Code Q07.9

Congenital malformation of nervous system, unspecified

    2016 2017 2018 2019 Billable/Specific Code POA Exempt
  • Q07.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM Q07.9 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of Q07.9 - other international versions of ICD-10 Q07.9 may differ.
Applicable To
  • Congenital anomaly NOS of nervous system
  • Congenital deformity NOS of nervous system
  • Congenital disease or lesion NOS of nervous system
The following code(s) above Q07.9 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 Q07.9:
  • Q00-Q99
    2019 ICD-10-CM Range Q00-Q99

    Congenital malformations, deformations and chromosomal abnormalities

    Note
    • Codes from this chapter are not for use on maternal records
    Type 2 Excludes
    • inborn errors of metabolism (E70-E88)
    Congenital malformations, deformations and chromosomal abnormalities
  • Q07
    ICD-10-CM Diagnosis Code Q07

    Other congenital malformations of nervous system

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • congenital central alveolar hypoventilation syndrome (G47.35)
    • familial dysautonomia [Riley-Day] (G90.1)
    • neurofibromatosis (nonmalignant) (Q85.0-)
    Other congenital malformations of nervous system
Approximate Synonyms
  • Central nervous system (cns) malformation, fetal
  • Congenital anomaly of nervous system
  • Nervous system anomaly
  • Neural tube defect
Clinical Information
  • An abnormality of the nervous system that is present at birth or detected in the neonatal period.
  • Structural abnormalities of the central or peripheral nervous system resulting primarily from defects of embryogenesis.
  • Structural or functional abnormalities of the central or peripheral nervous system existing at birth and often before birth, resulting primarily from defects of embryogenesis.
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.
  • Q07.9 is considered exempt from POA reporting.
ICD-10-CM Q07.9 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 091 Other disorders of nervous system with mcc
  • 092 Other disorders of nervous system with cc
  • 093 Other disorders of nervous system without cc/mcc
  • 793 Full term neonate with major problems

Convert Q07.9 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change

Diagnosis Index entries containing back-references to Q07.9:
  • Abnormal, abnormality, abnormalities - see also Anomaly
    • development, developmental Q89.9
      ICD-10-CM Diagnosis Code Q89.9

      Congenital malformation, unspecified

        2016 2017 2018 2019 Billable/Specific Code POA Exempt
      Applicable To
      • Congenital anomaly NOS
      • Congenital deformity NOS
      • central nervous system Q07.9
  • Anomaly, anomalous (congenital) (unspecified type) Q89.9
    ICD-10-CM Diagnosis Code Q89.9

    Congenital malformation, unspecified

      2016 2017 2018 2019 Billable/Specific Code POA Exempt
    Applicable To
    • Congenital anomaly NOS
    • Congenital deformity NOS
  • Deformity Q89.9
    ICD-10-CM Diagnosis Code Q89.9

    Congenital malformation, unspecified

      2016 2017 2018 2019 Billable/Specific Code POA Exempt
    Applicable To
    • Congenital anomaly NOS
    • Congenital deformity NOS
  • Disease, diseased - see also Syndrome
    • nervous system G98.8
      ICD-10-CM Diagnosis Code G98.8

      Other disorders of nervous system

        2016 2017 2018 2019 Billable/Specific Code
      Applicable To
      • Nervous system disorder NOS
      • congenital Q07.9
  • Dysplasia - see also Anomaly
    • brain Q07.9
  • Encephalopathy (acute) G93.40
    ICD-10-CM Diagnosis Code G93.40

    Encephalopathy, unspecified

      2016 2017 2018 2019 Billable/Specific Code
    • congenital Q07.9
  • Lesion(s) (nontraumatic)
    • nervous system, congenital Q07.9
  • Maldevelopment - see also Anomaly
    • brain Q07.9
  • Malformation (congenital) - see also Anomaly

ICD-10-CM Codes Adjacent To Q07.9
Q06.4 Hydromyelia
Q06.8 Other specified congenital malformations of spinal cord
Q06.9 Congenital malformation of spinal cord, unspecified
Q07 Other congenital malformations of nervous system
Q07.0 Arnold-Chiari syndrome
Q07.00 …… without spina bifida or hydrocephalus
Q07.01 …… with spina bifida
Q07.02 …… with hydrocephalus
Q07.03 …… with spina bifida and hydrocephalus
Q07.8 Other specified congenital malformations of nervous system
Q07.9 Congenital malformation of nervous system, unspecified
Q10 Congenital malformations of eyelid, lacrimal apparatus and orbit
Q10.0 Congenital ptosis
Q10.1 Congenital ectropion
Q10.2 Congenital entropion
Q10.3 Other congenital malformations of eyelid
Q10.4 Absence and agenesis of lacrimal apparatus
Q10.5 Congenital stenosis and stricture of lacrimal duct
Q10.6 Other congenital malformations of lacrimal apparatus
Q10.7 Congenital malformation of orbit
Q11 Anophthalmos, microphthalmos and macrophthalmos

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