G91.8

Other hydrocephalus

Billable / specificHCC V28 127

G91.8 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Includes (from G91)

  • acquired hydrocephalus

Excludes1

Not coded here — never report together with this code.

  • Arnold-Chiari syndrome with hydrocephalus (Q07.-) (from G91)
  • congenital hydrocephalus (Q03.-) (from G91)
  • spina bifida with hydrocephalus (Q05.-) (from G91)

Excludes2

Not included here — may be reported together when both conditions exist.

  • certain conditions originating in the perinatal period (P04-P96) (from G91)
  • certain infectious and parasitic diseases (A00-B99) (from G91)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A) (from G91)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from G91)
  • endocrine, nutritional and metabolic diseases (E00-E88) (from G91)
  • injury, poisoning and certain other consequences of external causes (S00-T88) (from G91)
  • neoplasms (C00-D49) (from G91)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from G91)

Also known as

  • Hydrocephalus, specified NEC

Parent code

  • G91HydrocephalusHeader

Related codes

  • G91.0Communicating hydrocephalusBillable
  • G91.1Obstructive hydrocephalusBillable
  • G91.2(Idiopathic) normal pressure hydrocephalusBillable
  • G91.3Post-traumatic hydrocephalus, unspecifiedBillable
  • G91.4Hydrocephalus in diseases classified elsewhereBillable
  • G91.9Hydrocephalus, unspecifiedBillable

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