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ICD-10 Coding for Left Neck Pain(M54.21, M50.122, S13.4XXA)

Complete ICD-10-CM coding and documentation guide for Left Neck Pain. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Left Cervical PainLeft-Sided Neck Pain

Related ICD-10 Code Ranges

Complete code families applicable to Left Neck Pain

M50-M54Primary Range

Other Dorsopathies

This range includes codes for cervicalgia and cervical disc disorders, which are relevant for coding left neck pain.

Dislocation and sprain of joints and ligaments of cervical spine

This range is relevant for coding traumatic neck injuries, which may present as left neck pain.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
M54.21Cervicalgia, occipito-atlanto-axial region, leftUse when the patient presents with isolated left-sided neck pain without neurological involvement.
  • Localized pain in the left cervical region
  • No neurological deficits
  • No identifiable structural pathology
M50.122Cervical disc disorder at C5-C6 level with radiculopathy, leftUse when there is confirmed radiculopathy with imaging evidence of disc disorder.
  • Imaging showing left C5-C6 disc protrusion
  • Positive EMG/NCS for left C6 radiculopathy
S13.4XXASprain of ligaments of cervical spine, initial encounterUse for acute traumatic neck pain with documented mechanism of injury.
  • Documented traumatic event
  • Ligament-specific findings on examination

Clinical Decision Support

Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.

Key Information: ICD-10 code for left neck pain

Essential facts and insights about Left Neck Pain

The ICD-10 code for left neck pain is M54.21, specifying cervicalgia on the left side.

Primary ICD-10-CM Codes for left neck pain

Cervicalgia, occipito-atlanto-axial region, left
Non-billable Code

Decision Criteria

clinical Criteria

  • Pain strictly in the left cervical region without radiation.

documentation Criteria

  • Documentation must specify left-sided pain and absence of neurological symptoms.

Applicable To

  • Localized left neck pain

Excludes

  • Cervical disc disorders with radiculopathy (M50.1-)

Clinical Validation Requirements

  • Localized pain in the left cervical region
  • No neurological deficits
  • No identifiable structural pathology

Code-Specific Risks

  • Risk of undercoding if radiculopathy is present but not documented.

Coding Notes

  • Ensure laterality is specified in documentation.

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Chronic pain due to trauma

G89.21
Use when chronic pain is documented alongside the primary code.

Other symptoms involving nervous system

R29.818
Use when additional neurological symptoms are documented.

Car occupant injured in collision with fixed or stationary object, initial encounter

V43.5AXA
Use to specify the external cause of injury.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Cervical disc disorder at C5-C6 level with radiculopathy, left

M50.122
Use when imaging confirms left-sided nerve root compression with radiculopathy.

Cervicalgia, occipito-atlanto-axial region, left

M54.21
Use M54.21 when there is no radiculopathy.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Left Neck Pain to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code M54.21.

Impact

Clinical: May lead to incorrect treatment plans., Regulatory: Non-compliance with ICD-10 guidelines., Financial: Potential for claim denials or reduced reimbursement.

Mitigation Strategy

Always document the side of the body affected., Use templates that prompt for laterality.

Impact

Reimbursement: May result in lower reimbursement due to lack of specificity., Compliance: Non-compliance with ICD-10 coding guidelines., Data Quality: Decreases accuracy of clinical data.

Mitigation Strategy

Use M54.21 to specify left-sided neck pain.

Impact

Reimbursement: Claims may be denied without supporting documentation., Compliance: Non-compliance with payer requirements., Data Quality: Inaccurate representation of clinical condition.

Mitigation Strategy

Ensure all diagnostic tests are documented when coding M50.122.

Impact

Failure to document laterality can lead to audit findings.

Mitigation Strategy

Implement documentation checks to ensure laterality is always specified.

Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.

Frequently Asked Questions

Common questions about ICD-10 coding for Left Neck Pain, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Left Neck Pain

Use these documentation templates to ensure complete and accurate documentation for Left Neck Pain. These templates include all required elements for proper coding and billing.

Emergency Department Visit for Left Neck Pain

Specialty: Emergency Medicine

Required Elements

  • Pain location and quality
  • Onset and duration
  • Associated symptoms
  • Neurological examination
  • Imaging results

Example Documentation

Patient presents with sharp left neck pain, 7/10, aggravated by rotation. No radiation past clavicle. Negative Hoffman's sign. CT cervical spine shows no acute pathology.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Left neck pain present.
Good Documentation Example
Patient reports 7/10 sharp pain localized to left posterior cervical triangle, aggravated by rotation to left. No radiation past clavicle. Negative Hoffman's sign. CT cervical spine dated 3/28/25 shows no acute pathology.
Explanation
The good example provides specific details about the pain, its location, and associated findings, which are necessary for accurate coding.

Need help with ICD-10 coding for Left Neck Pain? Ask your questions below.

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