ICD-10-CM · Spine

M54.10

M54.10 classifies radiculopathy — nerve root compression or irritation causing radiating pain, sensory changes, or motor deficits — when the affected spinal region is not documented or cannot be determined.

Verified May 8, 2026 · 7 sources ↓

Status: Billable
Chapter: 13
Related CPT: 12
Region: Spine

Drawn from CDCICD10DataAAPCMedsolercmCMS

Documentation tips

What should appear in the chart to support M54.10.

Source · Editorial brief grounded in 7 cited references ↓

Document the spinal region by name (cervical, thoracic, lumbar, lumbosacral, etc.) at every encounter — M54.10 should not persist once regional localization is achievable.
Record specific neurological findings: dermatomal pain distribution, reflex changes, muscle weakness, or sensory deficits that confirm nerve root involvement rather than general back pain.
Capture imaging results (MRI level, disc herniation at specific vertebral segment, foraminal stenosis location) to support a site-specific upgrade on subsequent encounters.
If a disc disorder or spondylosis is confirmed as the cause, document that relationship explicitly — it triggers an Excludes1 shift to M50.1-, M51.1-, or M47.2- and removes M54.10 from the claim.
Note the clinical basis for 'unspecified' if genuinely applicable — e.g., multilevel involvement, pending imaging, or referral with incomplete records — to justify the unspecified code under audit.

Related CPT procedures

Procedure codes commonly billed with M54.10. Linking the right diagnosis to the right procedure is what establishes medical necessity.

Source · CMS LCDs · AAOS specialty guidance · claims-pattern analysis

99213 $95.19

Established patient office or outpatient visit requiring 20–29 minutes of total time or low-complexity medical decision-making.

99214 $135.61

Office visit for an established patient requiring moderate-complexity medical decision making (MDM), or 30–39 minutes of total provider time on the date of service.

72141 $190.72

MRI of the cervical spinal canal and its contents performed without contrast material.

72148 $191.72

Non-contrast MRI of the lumbar spine used to evaluate disc pathology, spinal stenosis, nerve root compression, and other structural abnormalities without administration of contrast material.

72158 $318.31

MRI of the lumbar spinal canal and its contents performed first without contrast, then repeated after contrast administration for enhanced visualization.

72146 $190.39

MRI of the thoracic spinal canal and its contents performed without contrast material.

95907 $94.19

Nerve conduction studies totaling one or two individual studies in a session, with the interpretation and report.

95908 $118.24

Nerve conduction studies totaling three or four individual studies in one session, including interpretation and report.

95909 $141.95

Nerve conduction studies totaling five or six individual studies in a single session, with interpretation and report.

64483 $264.87

Transforaminal epidural injection of anesthetic, steroid, or both at one lumbar or sacral level, with fluoroscopic or CT guidance included.

64490 $205.08

Injection of anesthetic or steroid into a cervical or thoracic facet joint, or at the medial branch nerves supplying it, at a single level with imaging guidance.

62323 $273.22

Single interlaminar epidural or subarachnoid injection at a lumbar or sacral level, performed under fluoroscopic or CT guidance, delivering a steroid, anesthetic, or other non-neurolytic drug.

Common coding pitfalls

The recurring mistakes coders make with M54.10 and adjacent codes.

Source · Editorial brief grounded in CDC ICD-10-CM tabular guidance, AAOS coding references, and cited references ↓

Using M54.10 when a site-specific code (M54.11–M54.18) is supportable from the note — payers flag unspecified codes as lacking medical necessity specificity.
Reporting M54.10 alongside M50.1-, M51.1-, or M47.2- in violation of the Excludes1 note; the combination code for disc disorder with radiculopathy replaces M54.10, not supplements it.
Confusing radiculopathy NOS with neuralgia/neuritis NOS — the latter maps to M79.2, not M54.10, and the two are mutually exclusive under tabular guidance.
Leaving M54.10 on the claim for multiple encounters without advancing to a site-specific code once imaging or specialist documentation identifies the level.
Selecting M54.10 for sciatica — sciatica has its own category (M54.3-/M54.4-) and should not default to the radiculopathy family unless the provider explicitly diagnoses radiculopathy.

Clinical context

Source · Editorial summary grounded in 7 cited references ↓

M54.10 is the fallback code within the M54.1- family when a provider confirms radiculopathy but does not specify the spinal region (cervical, thoracic, lumbar, etc.). It is billable, but use it only when the documentation genuinely lacks regional identification — not as a shortcut when the region is documentable.

The code carries an Excludes1 restriction: do not report M54.10 alongside radiculopathy with cervical disc disorder (M50.1), radiculopathy with lumbar or other intervertebral disc disorder (M51.1-), or radiculopathy with spondylosis (M47.2-). When a disc disorder or spondylosis is the underlying cause, those combination codes replace M54.10 entirely. Similarly, neuralgia and neuritis NOS maps to M79.2, not M54.1x.

In practice, M54.10 surfaces most often on initial or urgent-care visits before imaging localizes the level, on referral documentation lacking regional detail, or on encounters where multilevel involvement makes a single-region code ambiguous. Once the treating provider can specify the region, update to the appropriate site-specific code: M54.11 (occipito-atlanto-axial) through M54.18 (sacral and sacrococcygeal).

Sibling codes

Other billable codes under M54.1 (laterality / anatomic variants).

M54.17

Radiculopathy, lumbosacral region

M54.12

Radiculopathy, cervical region

M54.13

Radiculopathy, cervicothoracic region

M54.15

Radiculopathy, thoracolumbar region

M54.16

Radiculopathy, lumbar region

M54.11

Radiculopathy, occipito-atlanto-axial region

M54.14

Radiculopathy, thoracic region

M54.18

Radiculopathy, sacral and sacrococcygeal region

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 7 cited references ↓

01When is M54.10 appropriate instead of a site-specific M54.1x code?

Use M54.10 only when the provider's documentation does not identify the spinal region — for example, on a first visit before MRI, or on a referral note lacking regional detail. Once the level is known, switch to M54.11–M54.18.

02Can M54.10 be billed with a disc disorder code like M51.16?

No. An Excludes1 note under M54.1 prohibits reporting M54.10 with radiculopathy due to lumbar and other intervertebral disc disorders (M51.1-). Use M51.1x alone — it already captures the radiculopathy component.

03Is M54.10 valid for sciatica with confirmed L5 nerve root compression?

No. Confirmed L5–S1 nerve root compression with disc involvement codes to M51.17 (lumbar disc disorder with radiculopathy) or M54.17 (lumbosacral radiculopathy) if no disc disorder is documented. Sciatica without radiculopathy diagnosis uses M54.3x.

04Does M54.10 require a 7th character?

No. M-codes in the dorsalgia category do not use 7th-character extensions. The 7th-character A/D/S convention applies to injury (S-code) encounters only.

05What is the difference between M54.10 and M79.2?

M54.10 is radiculopathy NOS — nerve root pathology confirmed or implied. M79.2 is neuralgia and neuritis NOS — a broader, less specific peripheral nerve pain category used when a radiculopathy diagnosis is not established. Do not use them interchangeably.

06Can M54.10 be the primary diagnosis for an MRI order?

Yes, M54.10 can justify spinal MRI when radiculopathy is the working diagnosis and region is not yet confirmed. Payers may require supporting clinical findings (positive straight-leg raise, dermatomal symptoms, reflex changes) for medical necessity; document those explicitly.

07How does M54.10 interact with EMG/nerve conduction study billing?

M54.10 pairs with EMG codes (e.g., 95907–95909) when nerve conduction studies are ordered to localize the radiculopathy level. Once the study confirms the region, update the diagnosis code to the corresponding site-specific M54.1x for subsequent claims.

Sources & references

Editorial content was developed using the following public sources. Last verified May 8, 2026.

Mira Scribe

Mira's AI scribe captures the provider's description of radiating pain pattern, affected dermatomal distribution, reflex or strength changes, and any referenced imaging level — the exact data needed to assign a site-specific M54.1x code rather than the unspecified M54.10. When region is documented, the scribe flags the appropriate child code automatically, preventing the unspecified fallback that draws payer scrutiny and audit risk.

See how Mira captures M54.10 documentation