ICD-10 Code G54.4 – Lumbosacral Root Disorders, Not Elsewhere Classified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G54.4 – Lumbosacral root disorders, not elsewhere classified
What it is
G54.4 identifies disorders affecting the lumbosacral nerve roots. It is used when the problem involves these roots but is not classified under a more specific diagnosis.
Clinical signs
Findings may include low back pain with radiating pain, numbness, tingling, weakness, or reflex changes in a lumbosacral nerve distribution. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record documents a lumbosacral root disorder and no more specific code applies. It may fit cases described as root irritation, radiculopathy-related findings, or other nonclassifiable lumbosacral nerve root problems. Check documentation for the exact terminology and laterality if reported elsewhere.
Do not use for
Do not use it when the chart supports a more specific nerve root diagnosis, such as a clearly documented radiculopathy elsewhere classified. Do not assign it for nonspecific back pain alone.
Coding tip
Code G54.4 only after confirming the provider documented a lumbosacral root disorder and no more specific option is available.