ICD10BillableValid for clinical use
ICD-10 Code G54.9: Nerve root and plexus disorder, unspecified
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the nervous system (G00-G99).
When is it used?
- May be used when a clinician documents nerve root and plexus disorder, unspecified in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
Code hierarchy
chapter
6Diseases of the nervous system (G00-G99)
block
G50-G59Nerve, nerve root and plexus disorders
category
G54Nerve root and plexus disorders
currentG54
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
NeurologistGeneral Physician
Related codes
G54.0Brachial plexus disorderscodeG54.1Lumbosacral plexus disorderscodeG54.2Cervical root disorders, not elsewhere classifiedcodeG54.3Thoracic root disorders, not elsewhere classifiedcodeG54.4Lumbosacral root disorders, not elsewhere classifiedcodeG54.5Neuralgic amyotrophycodeG54.6Phantom limb syndrome with paincodeG54.7Phantom limb syndrome without paincodeG54.8Other nerve root and plexus disorderscode
Sibling codes
G54.0Brachial plexus disordersbillableG54.1Lumbosacral plexus disordersbillableG54.2Cervical root disorders, not elsewhere classifiedbillableG54.3Thoracic root disorders, not elsewhere classifiedbillableG54.4Lumbosacral root disorders, not elsewhere classifiedbillableG54.5Neuralgic amyotrophybillableG54.6Phantom limb syndrome with painbillableG54.7Phantom limb syndrome without painbillableG54.8Other nerve root and plexus disordersbillable
Coverage-related procedures and services
CPT 95907high
NERVE CONDUCTION STUDIES; 1-2 STUDIES
Source: CMS coverage guidance
CPT 95912high
NERVE CONDUCTION STUDIES; 11-12 STUDIES
Source: CMS coverage guidance
CPT 95913high
NERVE CONDUCTION STUDIES; 13 OR MORE STUDIES
Source: CMS coverage guidance
CPT 95908high
NERVE CONDUCTION STUDIES; 3-4 STUDIES
Source: CMS coverage guidance
CPT 95909high
NERVE CONDUCTION STUDIES; 5-6 STUDIES
Source: CMS coverage guidance
CPT 95910high
NERVE CONDUCTION STUDIES; 7-8 STUDIES
Source: CMS coverage guidance
Mapped diagnoses and classifications
SNOMED_CT 111236008high
Compression of spinal nerve root
Source: SNOMED International ICD-10 map
SNOMED_CT 609612001high
Disorder of nerve root and/or plexus
Source: SNOMED International ICD-10 map
SNOMED_CT 609611008high
Lesion of nerve root and/or plexus
Source: SNOMED International ICD-10 map
SNOMED_CT 2231001high
Nerve plexus disorder
Source: SNOMED International ICD-10 map
SNOMED_CT 72274001high
Nerve root disorder
Source: SNOMED International ICD-10 map
SNOMED_CT 1230019002high
Radiation-induced plexopathy
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
G54.9
Common synonyms
Nerve root and plexus disorder, unspecifiedNerve root and plexus disorder
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.