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Code
Description

ICD-10-CM Code G31.1
Senile degeneration of brain, not elsewhere classified

BILLABLE
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
Mental Health
Mental Health Code
Indicates that the ICD code is referenced in DSM-5 (Diagnostic and Statistical Manual of Mental Disorders, Version 5)
| ICD-10 from 2011 - 2016

G31.1 is a billable ICD code used to specify a diagnosis of senile degeneration of brain, not elsewhere classified. A 'billable code' is detailed enough to be used to specify a medical diagnosis.


The ICD code G31 is used to code Neurodegeneration

Neurodegeneration is the umbrella term for the progressive loss of structure or function of neurons, including death of neurons. Many neurodegenerative diseases including amyotrophic lateral sclerosis, Parkinson's, Alzheimer's, and Huntington's occur as a result of neurodegenerative processes. Such diseases are incurable, resulting in progressive degeneration and/or death of neuron cells. As research progresses, many similarities appear that relate these diseases to one another on a sub-cellular level. Discovering these similarities offers hope for therapeutic advances that could ameliorate many diseases simultaneously. There are many parallels between different neurodegenerative disorders including atypical protein assemblies as well as induced cell death. Neurodegeneration can be found in many different levels of neuronal circuitry ranging from molecular to systemic.

Specialty: Neurology
MeSH Code: D019636

Coding Notes for G31.1 Info for medical coders on how to properly use this ICD-10 code

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."
Alzheimer's disease - instead, use code G30.-
Senility NOS - instead, use code R41.81

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

  • >= 65.0 years
  • Age at onset of clinical finding (observable entity)

Coding Advice SNOMET-CT

  • Consider additional code to identify specific condition or disease

ICD-10-CM Alphabetical Index References for 'G31.1 - Senile degeneration of brain, not elsewhere classified'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code G31.1. Click on any term below to browse the alphabetical index.

Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)

Senile degeneration of brain (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 331.2 was previously used, G31.1 is the appropriate modern ICD10 code.


Parent Code: G31 - Other degenerative diseases of nervous system, not elsewhere classified

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/G311