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ICD-10-CM Codes
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Q00-Q99
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Q00-Q07
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Q04-
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2023 ICD-10-CM Diagnosis Code Q04.1
2023 ICD-10-CM Diagnosis Code Q04.1
Arhinencephaly
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
- Q04.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2023 edition of ICD-10-CM Q04.1 became effective on October 1, 2022.
- This is the American ICD-10-CM version of Q04.1 - other international versions of ICD-10 Q04.1 may differ.
The following code(s) above
Q04.1 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
Q04.1:
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.
- Q04.1 is considered exempt from POA reporting.
ICD-10-CM Q04.1 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
- 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
- 791 Prematurity with major problems
- 793 Full term neonate with major problems
Convert Q04.1 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
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
ICD-10-CM Codes Adjacent To Q04.1
Q01.8 Encephalocele of other sites
Q01.9 Encephalocele, unspecified
Q03 Congenital hydrocephalus
Q03.0 Malformations of aqueduct of Sylvius
Q03.1 Atresia of foramina of Magendie and Luschka
Q03.8 Other congenital hydrocephalus
Q03.9 Congenital hydrocephalus, unspecified
Q04 Other congenital malformations of brain
Q04.0 Congenital malformations of corpus callosum
Q04.1
Arhinencephaly
Q04.3 Other reduction deformities of brain
Q04.4 Septo-optic dysplasia of brain
Q04.6 Congenital cerebral cysts
Q04.8 Other specified congenital malformations of brain
Q04.9 Congenital malformation of brain, unspecified
Q05.0 Cervical spina bifida with hydrocephalus
Q05.1 Thoracic spina bifida with hydrocephalus
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
