Hydrocephalus
Non-billable header
G91 is a non-billable header code. Use one of the more specific codes below.
Inclusion terms
Includes
- acquired hydrocephalus
Excludes1
Not coded here — never report together with this code.
Excludes2
Not included here — may be reported together when both conditions exist.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
More specific codes G91
- G91.0Communicating hydrocephalusBillable
- G91.1Obstructive hydrocephalusBillable
- G91.2(Idiopathic) normal pressure hydrocephalusBillable
- G91.3Post-traumatic hydrocephalus, unspecifiedBillable
- G91.4Hydrocephalus in diseases classified elsewhereBillable
- G91.8Other hydrocephalusBillable
- G91.9Hydrocephalus, unspecifiedBillable
Related codes
- G89Pain, not elsewhere classifiedHeader
- G90Disorders of autonomic nervous systemHeader
- G92Toxic encephalopathyHeader
- G93Other disorders of brainHeader
- G94Other disorders of brain in diseases classified elsewhereBillable
- G95Other and unspecified diseases of spinal cordHeader
- G96Other disorders of central nervous systemHeader
- G97Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classifiedHeader
- G98Other disorders of nervous system not elsewhere classifiedHeader
- G99Other disorders of nervous system in diseases classified elsewhereHeader