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  6. 2024 ICD-10-CM Code G90.8
Version 2024
Replaced Code
Billable Code
Convert to ICD-9

2024 ICD-10-CM Diagnosis Code G90.8

Other disorders of autonomic nervous system

ICD-10-CM Code:
G90.8
ICD-10 Code for:
Other disorders of autonomic nervous system
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Chronic
Code Navigator:

Code Classification

  • Diseases of the nervous system
    (G00–G99)
    • Other disorders of the nervous system
      (G89-G99)
      • Disorders of autonomic nervous system
        (G90)

G90.8 is a billable diagnosis code used to specify a medical diagnosis of other disorders of autonomic nervous system. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Acute pandysautonomia
  • Autoimmune disorder of autonomic nerve
  • Autoimmune disorder of autonomic nervous system
  • Autoimmune ganglionopathy
  • Autoimmune sensory ganglionopathy
  • Autonomic disorder due to diphtheria
  • Autonomic disorder due to encephalitis
  • Autonomic ganglionopathy
  • Autonomic nervous system disorder co-occurrent and due to neurodegenerative disorder
  • Autonomic nervous system hyperactivity
  • Autonomic neuropathy due to disorder of immune function
  • Autonomic neuropathy due to sodium channelopathy
  • Baroreflex failure syndrome
  • Cold-induced sweating syndrome
  • Disorder of autonomic nervous system caused by drug
  • Disorder of autonomic nervous system due to infectious disease
  • Disorder of autonomic nervous system due to infectious disease
  • Episodic mydriasis due to parasympathetic insufficiency
  • Episodic mydriasis due to sympathetic hyperactivity
  • Excessive muscarinic activity
  • Hereditary autonomic neuropathy
  • Hypothermia-sweating syndrome
  • Limited autoimmune autonomic neuropathy
  • Persistent mydriasis
  • Persistent mydriasis
  • Segmental autonomic dysfunction
  • Sympathetically maintained pain
  • Syncope due to autonomic failure

Clinical Classification

Replaced Code

This code was replaced in the 2024 ICD-10-CM code set with the code(s) listed below. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2023. This code was replaced for the FY 2024 (October 1, 2023 - September 30, 2024).


  • G90.B - LMNB1-related autosomal dominant leukodystrophy

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert G90.8 to ICD-9-CM

  • ICD-9-CM Code: 337.9 - Autonomic nerve dis NEC
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education


Autonomic Nervous System Disorders

Your autonomic nervous system is the part of your nervous system that controls involuntary actions, such as the beating of your heart and the widening or narrowing of your blood vessels. When something goes wrong in this system, it can cause serious problems, including:

  • Blood pressure problems
  • Heart problems
  • Trouble with breathing and swallowing
  • Erectile dysfunction in men

Autonomic nervous system disorders can occur alone or as the result of another disease, such as Parkinson's disease, alcoholism and diabetes. Problems can affect either part of the system, as in complex regional pain syndromes, or all of the system. Some types are temporary, but many worsen over time. When they affect your breathing or heart function, these disorders can be life-threatening.

Some autonomic nervous system disorders get better when an underlying disease is treated. Often, however, there is no cure. In that case, the goal of treatment is to improve symptoms.

NIH: National Institute of Neurological Disorders and Stroke


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.