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Code
Description

ICD-10-CM Code G91
Hydrocephalus

NON-BILLABLE
Non-Billable Code
Non-Billable means the code is not sufficient justification for admission to an acute care hospital when used a principal diagnosis. Use a child code to capture more detail.
| ICD-10 from 2011 - 2016

ICD Code G91 is a non-billable code. To code a diagnosis of this type, you must use one of the seven child codes of G91 that describes the diagnosis 'hydrocephalus' in more detail.


The ICD code G91 is used to code Hydrocephalus

Hydrocephalus (from Greek hydro-, meaning "water", and kephalos, meaning "head") is a rare medical condition in which there is an abnormal accumulation of cerebrospinal fluid (CSF) in the brain. This causes increased intracranial pressure inside the skull and may cause progressive enlargement of the head if it occurs in childhood, potentially causing convulsion, tunnel vision, and mental disability. It was once informally called "Water on the brain."

Specialty: Neurosurgery
MeSH Codes: D006849, D006849, D006849, D006849
ICD 9 Codes: 331.3, 331.4, 741.0, 742.3

Hydrocephalus seen on a CT scan of the brain. The black areas in the middle of the brain are abnormally large and filled with fluid.

Coding Notes for G91 Info for medical coders on how to properly use this ICD-10 code

Code Includes Notes:
Includes
Includes notes further define, or give examples of, conditions included in the section.
Acquired hydrocephalus
Code Type-1 Excludes:
Type-1 Excludes
Type-1 Excludes mean the conditions excluded are mutually exclusive and should never be coded together. Excludes 1 means "do not code here."
Arnold-Chiari syndrome with hydrocephalus - instead, use code Q07.-
Congenital hydrocephalus - instead, use code Q03.-
Spina bifida with hydrocephalus - instead, use code Q05.-

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/G91