Free ICD-9-CM Diagnosis Codes
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2009
> Congential Anomalies
740-759
> Other congenital anomalies of nervous system
742.*
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2009 ICD-9-CM Diagnosis Code 742.1
Microcephalus
742.0
742.2
742.1 is a billable ICD-9-CM medical code that can be used to specify a diagnosis on a reimbursement claim.
Newer versions of 742.1:
2010
Diagnosis Definition(s)
abnormal smallness of the brain.
Smallness of the head produced by incomplete development of the brain, often associated with below normal mental and cognitive development.
Also applicable to/known as
Hydromicrocephaly
Micrencephaly
ICD-9-CM Volume 2 Index Entries That Refer To 742.1
Absence (organ or part) (complete or partial)
skull bone
756.0
with
microcephalus
742.1
Agenesis - see also Absence, by site, congenital
skull (bone)
756.0
with
microcephalus
742.1
Anomaly, anomalous (congenital) (unspecified type)
759.9
bone NEC
756.9
skull
756.0
with
microcephalus
742.1
skull (bone)
756.0
with
microcephalus
742.1
specified type NEC
bone(s)
756.9
skull
756.0
with
microcephalus
742.1
skull (bone(s))
756.0
with
microcephalus
742.1
Deformity
738.9
skull (acquired)
738.19
congenital
756.0
with
microcephalus
742.1
Distortion (congenital)
skull bone(s)
756.0
with
microcephalus
742.1
Hydromicrocephaly
742.1
Hypoplasia, hypoplasis
759.89
brain
742.1
gyri
742.2
specified part
742.2
cephalic
742.1
skull (bone)
756.0
with
microcephalus
742.1
Idiot, idiocy (congenital)
318.2
microcephalic
742.1
Imperfect
closure (congenital)
skull
756.0
with
microcephalus
742.1
Micrencephalon, micrencephaly
742.1
Microcephalus, microcephalic, microcephaly
742.1
due to toxoplasmosis (congenital)
771.2
Microencephalon
742.1
Nondevelopment
brain
742.1
specified part
742.2
Oligoencephalon
742.1
Undeveloped, undevelopment - see also Hypoplasia
brain (congenital)
742.1
cerebral (congenital)
742.1