2024 ICD-10-CM Diagnosis Code G50.9
Disorder of trigeminal nerve, unspecified
- ICD-10-CM Code:
- G50.9
- ICD-10 Code for:
- Disorder of trigeminal nerve, unspecified
- Is Billable?
- Yes - Valid for Submission
- Chronic Condition Indicator: [1]
- Not chronic
- Code Navigator:
G50.9 is a billable diagnosis code used to specify a medical diagnosis of disorder of trigeminal nerve, unspecified. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.
Unspecified diagnosis codes like G50.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Abnormal innervation syndrome
- Abnormal innervation syndrome
- Abnormal nervous system function
- Disorder of left trigeminal nerve
- Disorder of right trigeminal nerve
- Fifth cranial nerve abnormal
- Fifth cranial nerve finding
- Idiopathic trigeminal neuropathy
- Inverse Marcus-Gunn phenomenon
- Jaw-winking syndrome
- Neurotrophic damage to skin
- Ophthalmic nerve disorder
- Paratrigeminal syndrome
- Second division of fifth cranial nerve disorder
- Skin damage resulting from acquired nerve disorder
- Trigeminal nerve disorder
- Trigeminal nerve sensory disorder
- Trigeminal trophic syndrome
Clinical Classification
Clinical Category is Nerve and nerve root disorders
- CCSR Category Code: NVS017
- Inpatient Default CCSR: Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.
- Outpatient Default CCSR: Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.
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).
- - Disorder (of) - See Also: Disease;
- - Lesion (s) (nontraumatic)
- - cranial nerve - G52.9
- - fifth - G50.9
- - trigeminal nerve - G50.9
- - cranial nerve - G52.9
- - Paralysis, paralytic (complete) (incomplete) - G83.9
- - nerve - See Also: Disorder, nerve;
- - trigeminal - G50.9
- - paratrigeminal - G50.9
- - trigeminal nerve - G50.9
- - nerve - See Also: Disorder, nerve;
Convert G50.9 to ICD-9-CM
- ICD-9-CM Code: 350.9 - Trigeminal nerve dis NOS
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] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.