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ICD-10-CM Code G91.2
(Idiopathic) normal pressure hydrocephalus

BILLABLE
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
| ICD-10 from 2011 - 2016

G91.2 is a billable ICD code used to specify a diagnosis of (Idiopathic) normal pressure hydrocephalus. A 'billable code' is detailed enough to be used to specify a medical diagnosis.


The ICD code G912 is used to code Normal pressure hydrocephalus

Normal pressure hydrocephalus (NPH), also termed symptomatic hydrocephalus, is a type of brain malfunction caused by decreased absorption of cerebrospinal fluid (CSF). Its typical symptoms are gait disturbance, urinary incontinence, and dementia or mental decline. It is difficult to diagnose because the symptoms are common to several other diseases. The usual treatment is installation of a shunt to drain excess CSF into another part of the body. This treatment can reverse the symptoms and restore normal functioning, or it may do so partially, or it may not succeed.

Specialty: Neurology
MeSH Codes: D006850, D006850
ICD 9 Codes: 331.9, 331.5
Source: Wikipedia

Coding Notes for G91.2 Info for medical coders on how to properly use this ICD-10 code

Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
Normal pressure hydrocephalus NOS

MS-DRG Mapping

  • DRG Group #056-057 - Degenerative nervous system disorders with MCC.
  • DRG Group #056-057 - Degenerative nervous system disorders without MCC.

Related Concepts SNOMET-CT

  • Normal pressure hydrocephalus (disorder)

ICD-10-CM Alphabetical Index References for 'G91.2 - (Idiopathic) normal pressure hydrocephalus'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code G91.2. Click on any term below to browse the alphabetical index.

Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)

Idiopathic normal pressure hydrocephalus (INPH) (exact match)

This is the official exact match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that in all cases where the ICD9 code 331.5 was previously used, G91.2 is the appropriate modern ICD10 code.


Parent Code: G91 - Hydrocephalus

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/G912