Valid for Submission
Q04.1 is a billable diagnosis code used to specify a medical diagnosis of arhinencephaly. The code Q04.1 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code Q04.1 might also be used to specify conditions or terms like isolated arhinencephaly or loss of sense of smell. The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.
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 Q04.1 are found in the index:
- - Arhinencephaly - Q04.1
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Isolated arhinencephaly
- Loss of sense of smell
- HOLOPROSENCEPHALY-. anterior midline brain cranial and facial malformations resulting from the failure of the embryonic prosencephalon to undergo segmentation and cleavage. alobar prosencephaly is the most severe form and features anophthalmia; cyclopia; severe intellectual disability; cleft lip; cleft palate; seizures; and microcephaly. semilobar holoprosencepaly is characterized by hypotelorism microphthalmia coloboma nasal malformations and variable degrees of intellectual disability. lobar holoprosencephaly is associated with mild or absent facial malformations and intellectual abilities that range from mild intellectual disability to normal. holoprosencephaly is associated with chromosome abnormalities.
Present on Admission (POA)
Convert Q04.1 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code Q04.1 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
Information for Patients
Also called: Cephalic disorders
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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Craniofacial is a medical term that relates to the bones of the skull and face. Craniofacial abnormalities are birth defects of the face or head. Some, like cleft lip and palate, are among the most common of all birth defects. Others are very rare. Most of them affect how a person's face or head looks. These conditions may also affect other parts of the body.
Treatment depends on the type of problem. Plastic and reconstructive surgery may help the person's appearance.
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