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2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Congential Anomalies 740-759 > Other Congenital Anomalies Of Nervous System 742.* >

2008 ICD-9-CM Diagnosis 742.1

Microcephalus

  • Abnormal smallness of the head, usually associated with mental retardation. (Dorland, 27th ed)
  • 742.1 is a specific code that can be used to specify a diagnosis
  • 742.1 contains 21 index entries
  • View the ICD-9-CM Volume 1 742.* hierarchy

742.1 also known as:

  • Hydromicrocephaly
  • Micrencephaly


Index entries containing 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
  • 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
Oligoencephalon 742.1
Undeveloped, undevelopment - see also Hypoplasia
  • brain (congenital) 742.1
  • cerebral (congenital) 742.1