2024 ICD-10-CM Diagnosis Code G58.9
Mononeuropathy, unspecified
- ICD-10-CM Code:
- G58.9
- ICD-10 Code for:
- Mononeuropathy, unspecified
- Is Billable?
- Yes - Valid for Submission
- Chronic Condition Indicator: [1]
- Chronic
- Code Navigator:
G58.9 is a billable diagnosis code used to specify a medical diagnosis of mononeuropathy, 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 G58.9 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:
- Ischemic neuropathy
- Mononeuritis
- Mononeuropathy
- Nerve entrapment due to scar
- Nerve palsy
- Peripheral nerve thickening
- Polyneuropathy and mononeuropathy
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.
Clinical Information
Ischemic Neuropathy
neuropathy that is caused by inadequate blood supply.
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).
- - Compression
- - nerve - See Also: Disorder, nerve; - G58.9
- - Disorder (of) - See Also: Disease;
- - nerve - G58.9
- - Irritation
- - spinal (cord) (traumatic) - See Also: Injury, spinal cord, by region;
- - nerve - G58.9
- - spinal (cord) (traumatic) - See Also: Injury, spinal cord, by region;
- - Lesion (s) (nontraumatic)
- - nerve - G58.9
- - Mononeuritis - G58.9
- - Mononeuropathy - G58.9
- - Neuronitis - G58.9
- - Neuropathy, neuropathic - G62.9
- - entrapment - G58.9
- - Paralysis, paralytic (complete) (incomplete) - G83.9
- - atrophic - G58.9
- - muscle, muscular NEC - G72.89
- - due to nerve lesion - G58.9
Convert G58.9 to ICD-9-CM
- ICD-9-CM Code: 355.9 - Mononeuritis NOS
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.
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.