ICD-10-CM · Spine

M50.11

Cervical disc disorder with radiculopathy localized to the high cervical region, covering disc-related nerve root compression or irritation at the C2-C3 and C3-C4 levels, including C3 and C4 radiculopathy due to disc pathology.

Verified May 8, 2026 · 7 sources ↓

Status: Billable
Chapter: 13
Related CPT: 10
Region: Spine

Drawn from CDCICD10DataCMSIcd10monitorAAPC

Documentation tips

What should appear in the chart to support M50.11.

Source · Editorial brief grounded in 7 cited references ↓

Specify the disc level by name — C2-C3 or C3-C4 — in the assessment or impression; 'high cervical' alone is acceptable but level-specific language eliminates ambiguity at audit.
Distinguish radiculopathy from myelopathy in the note: radiculopathy = nerve root deficit (arm/shoulder pain, dermatomal numbness, reflex change); myelopathy = spinal cord deficit (gait, bowel/bladder). Using the wrong term forces the wrong code.
Document imaging findings that support disc pathology — MRI disc herniation size, foraminal stenosis grade, or CT myelogram findings — to substantiate the combination code.
Record the neurological examination findings (dermatomal distribution, motor strength, reflexes) that confirm nerve root involvement at the C3 or C4 level.
If conservative care has been tried, document it explicitly (physical therapy duration, NSAID trial, activity modification) — this supports medical necessity for injections or surgical referral.

Related CPT procedures

Procedure codes commonly billed with M50.11. 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.

99215 $192.39

Highest-level office or outpatient E/M visit for an established patient, qualifying via high-complexity medical decision making or 40–54 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.

72040 $39.75

Radiologic examination of the cervical spine capturing two or three views (e.g., AP, lateral, oblique).

63020 $1,064.15

Laminotomy at a single cervical interspace with nerve root decompression, including partial facetectomy, foraminotomy, and/or herniated disc excision — open or endoscopic approach.

63045 $1,249.53

Open cervical laminectomy with facetectomy and foraminotomy at a single vertebral level to decompress nerve roots or the spinal cord.

72142 View procedure details

72156 View procedure details

62321 View procedure details

Common coding pitfalls

The recurring mistakes coders make with M50.11 and adjacent codes.

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

Assigning M50.11 for mid-cervical pathology: C4-C5, C5-C6, and C6-C7 levels belong under M50.121, M50.122, and M50.123 respectively — not M50.11.
Adding a separate radiculopathy code (M54.12) alongside M50.11: M50.11 is a combination code that already includes the radiculopathy; a second code is redundant and may trigger an edit.
Using M50.11 when myelopathy is documented: spinal cord involvement requires M50.01, a clinically and reimbursement-distinct code.
Defaulting to M50.10 (unspecified cervical region) when the provider has documented the level as C2-C3 or C3-C4 — this under-codes specificity and may invite an audit query.
Coding M50.11 from imaging reports alone without a physician diagnosis of radiculopathy: the disc finding on MRI does not itself establish radiculopathy; the clinician must document the neurological correlation.

Clinical context

Source · Editorial summary grounded in 7 cited references ↓

M50.11 applies when a cervical disc disorder — herniation, degeneration, or displacement — compresses or irritates nerve roots specifically at the C2-C3 or C3-C4 level, producing radiculopathy. Covered presentations include C3 radiculopathy due to disc disorder and C4 radiculopathy due to disc disorder, as well as occipitoatlantoaxial disc disorder with radiculopathy. This is a combination code: it captures both the disc pathology and the resulting radiculopathy in a single code, so do not add a separate radiculopathy code (e.g., M54.12) when M50.11 is the confirmed diagnosis.

High cervical radiculopathy is clinically distinct from mid-cervical involvement (C4-C7, coded under M50.12x) and cervicothoracic involvement (C7-T1, coded under M50.13). If the operative or imaging report confirms the affected level is C2-C3 or C3-C4, M50.11 is the correct code. If the level is unspecified, drop to M50.10. Do not use M50.11 for myelopathy — spinal cord involvement requires M50.01.

This code falls under MS-DRG v43.0 groups 551 (Medical back problems with MCC) and 552 (Medical back problems without MCC) for inpatient encounters. On the outpatient side, it commonly pairs with cervical spine imaging and E/M services, and may support authorization for injections or surgical intervention when conservative care is documented.

Inclusion & exclusion notes

Per the official ICD-10-CM Tabular List.

Source · CDC ICD-10-CM Official Tabular List · 2026

Includes

C2-C3 disc disorder with radiculopathy
C3 radiculopathy due to disc disorder
C3-C4 disc disorder with radiculopathy
C4 radiculopathy due to disc disorder

Sibling codes

Other billable codes under M50.1 (laterality / anatomic variants).

M50.13

Cervical disc disorder w radiculopathy, cervicothor region

M50.10

Cervical disc disorder w radiculopathy, unsp cervical region

Frequently asked questions

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

01What spinal levels does M50.11 cover?

M50.11 covers the C2-C3 and C3-C4 disc levels, including C3 radiculopathy due to disc disorder and C4 radiculopathy due to disc disorder. It also includes occipitoatlantoaxial disc disorder with radiculopathy per the ICD-10-CM Tabular List Applicable To notes.

02When should I use M50.10 instead of M50.11?

Use M50.10 only when the provider documents a cervical disc disorder with radiculopathy but does not specify the involved level. If the note or imaging report confirms C2-C3 or C3-C4 involvement and the clinician confirms radiculopathy, M50.11 is required for maximum specificity.

03Can I code M50.11 and M54.12 together?

No. M50.11 is a combination code that subsumes both the disc disorder and the radiculopathy. Adding M54.12 (Radiculopathy, cervical region) is redundant and will likely trigger a claim edit. Use M50.11 alone when the radiculopathy is attributed to the disc disorder.

04How do I code C5-C6 disc herniation with radiculopathy — is that also M50.11?

No. C5-C6 is a mid-cervical level and codes to M50.122 (Cervical disc disorder at C5-C6 level with radiculopathy). M50.11 is strictly for C2-C3 and C3-C4 pathology.

05What is the difference between M50.11 and M50.01?

M50.11 is for radiculopathy (nerve root compression), and M50.01 is for myelopathy (spinal cord compression) at the high cervical region. They are clinically and code-set distinct. Myelopathy can include bowel/bladder dysfunction and bilateral deficits; radiculopathy typically produces unilateral dermatomal symptoms. The provider's documented diagnosis determines which code applies.

06Does M50.11 require a 7th character extension?

No. M50.11 is an M-code (musculoskeletal chapter) and does not use 7th-character extensions. The 7th-character encounter designators (A, D, S) apply to injury S-codes, not to M50 series codes.

07What imaging is typically associated with M50.11 for documentation purposes?

Cervical MRI (CPT 72141 without contrast, 72142 with contrast, or 72156 with and without contrast) is the primary imaging modality. Cervical X-ray (72040) may also be ordered. Documenting the imaging findings — disc herniation, foraminal stenosis, nerve root compression at C2-C3 or C3-C4 — strengthens the clinical basis for M50.11 and supports medical necessity reviews.

Sources & references

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

Mira AI Scribe

Mira AI Scribe captures the disc level (C2-C3 or C3-C4), the specific radicular symptoms and their dermatomal distribution, neurological exam findings (motor, sensory, reflex), and supporting imaging results from the encounter note. This prevents downcoding to the unspecified M50.10, eliminates the risk of myelopathy/radiculopathy conflation, and substantiates the combination code without a redundant secondary radiculopathy entry.

See how Mira captures M50.11 documentation