2027 ICD-10-CM Diagnosis Code G54.4Lumbosacral root disorders, not elsewhere classified
ICD-10-CM Codes›G00–G99›G50-G59›G54
- Billable — Valid for Submission
- Chronic Condition
G54.4 is a billable ICD-10-CM diagnosis code for lumbosacral root disorders, not elsewhere classified. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 73 through 74. Coders also document this condition as compression of lumbar nerve root. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Nerve and nerve root disorders.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Compression of lumbar nerve root
- Compression of sacral nerve root
- Lesion of left lumbosacral nerve root
- Lesion of lumbar and sacral spinal nerve roots
- Lesion of right lumbosacral nerve root
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to G54.4: its own notes plus those printed at G54, block G50-G59, and Chapter 6. A note printed at a category, block or chapter applies to every code under it.
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
- current traumatic nerve root and plexus disorders - see nerve injury by body region
- intervertebral disc disorders (M50-M51)
- neuralgia or neuritis NOS (M79.2)
- neuritis or radiculitis brachial NOS (M54.13)
- neuritis or radiculitis lumbar NOS (M54.16)
- neuritis or radiculitis lumbosacral NOS (M54.17)
- neuritis or radiculitis thoracic NOS (M54.14)
- radiculitis NOS (M54.10)
- radiculopathy NOS (M54.10)
- spondylosis (M47.-)
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Disorder (of) See Also: Disease;
root (nerve) NEC G54.4
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Peripheral Nerve Disorders
Nerves are like wires that carry messages back and forth between your brain and your body. Your peripheral nerves branch off from your brain and spinal cord and connect to all parts of your body, including your muscles and organs.
The full article covers:
- What are peripheral nerves?
- What are peripheral nerve disorders?
- What causes peripheral nerve disorders?
- What are the symptoms of peripheral nerve disorders?
- How are peripheral nerve disorders diagnosed?
- What are the treatments for peripheral nerve disorders?
- Can peripheral nerve disorders be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert G54.4 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About G54.4Overview
What is the ICD-10 code for lumbosacral root disorders, not elsewhere classified?
The ICD-10-CM code for lumbosacral root disorders, not elsewhere classified is G54.4 (sometimes written as G544). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is G54.4 (Nerve root and plexus disorders) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report lumbosacral root disorders, not elsewhere classified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does G54.4 group to?
When lumbosacral root disorders, not elsewhere classified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 74, 73, with relative weights from 1.0172 to 1.5773 depending on complications. Higher weights mean higher Medicare reimbursement.
Can G54.4 be reported with M79.2?
Not as a rule. The Excludes1 note at G54, which applies to G54.4, lists "neuralgia or neuritis NOS (M79.2)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
What is the ICD-9 equivalent of G54.4?
Under the General Equivalence Mappings, lumbosacral root disorders, not elsewhere classified converts to ICD-9-CM 353.4 (lumbsacral root les NEC). The mapping is approximate, so confirm the match fits the documentation.
