Diagnosis Code: 331.4

Short Description: Obstructiv hydrocephalus

Long Description: Obstructive hydrocephalus

Code Classification:

• Diseases of the nervous system (320–359)
  • Hereditary and degenerative diseases of the central nervous system (330-337)
    • 331 Other cerebral degenerations
      • 331.4 Obstructiv hydrocephalus

Code Version: 2015 ICD-9-CM

References to Index of Diseases and Injuries

The code 331.4 has the following ICD-9-CM references to the Index of Diseases and Injuries

• Hydrocephalus (acquired) (external) (internal) (malignant) (noncommunicating) (obstructive) (recurrent) 331.4
  • aqueduct of Sylvius stricture 742.3
    • with spina bifida (see also Spina bifida) 741.0
  • chronic 742.3
    • with spina bifida (see also Spina bifida) 741.0
  • communicating 331.3
  • congenital (external) (internal) 742.3
    • with spina bifida (see also Spina bifida) 741.0
  • due to
    • stricture of aqueduct of Sylvius 742.3
      • with spina bifida (see also Spina bifida) 741.0
    • toxoplasmosis (congenital) 771.2
  • fetal affecting management of pregnancy 655.0
  • foramen Magendie block (acquired) 331.3
    • congenital 742.3
      • with spina bifida (see also Spina bifida) 741.0
  • newborn 742.3
    • with spina bifida (see also Spina bifida) 741.0
  • normal pressure 331.5
    • idiopathic (INPH) 331.5
    • secondary 331.3
  • otitic 348.2
  • syphilitic, congenital 090.49
  • tuberculous (see also Tuberculosis) 013.8

• Hydrops 782.3
  • meningeal NEC 331.4

• Macrohydrocephalus (see also Hydrocephalus) 331.4

• Obstruction, obstructed, obstructive
  • aqueduct of Sylvius 331.4
    • congenital 742.3
      • with spina bifida (see also Spina bifida) 741.0

• Occlusion
  • aqueduct of Sylvius 331.4
    • congenital 742.3
      • with spina bifida (see also Spina bifida) 741.0
  • ventricle (brain) NEC 331.4

• Stenosis (cicatricial) - see also Stricture
  • aqueduct of Sylvius (congenital) 742.3
    • acquired 331.4

• Stricture (see also Stenosis) 799.89
  • aqueduct of Sylvius (congenital) 742.3
    • acquired 331.4

Crosswalk Information

The code 331.4 converts into the following ICD-10 code(s):

Similar Codes

This page was last updated on: 10/1/2014

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