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ICD-10 Coding for Lumbar Facet Arthropathy(M46.96, M47.816)

Complete ICD-10-CM coding and documentation guide for Lumbar Facet Arthropathy. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Facet Joint ArthropathyFacet Joint SyndromeFacet Arthrosis

Related ICD-10 Code Ranges

Complete code families applicable to Lumbar Facet Arthropathy

M46-M47Primary Range

Other inflammatory spondylopathies and spondylosis

This range includes codes for inflammatory conditions and degenerative changes affecting the spine, relevant for coding lumbar facet arthropathy.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
M46.96Unspecified inflammatory spondylopathy, lumbar regionUse when documentation specifies facet arthropathy without linking to spondylosis.
  • Imaging showing facet joint degeneration
  • Pain localized to lumbar region without radiculopathy
M47.816Spondylosis without myelopathy or radiculopathy, lumbar regionUse when documentation links facet changes to spondylosis.
  • Imaging showing spondylosis with facet joint involvement

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 lumbar facet arthropathy

Essential facts and insights about Lumbar Facet Arthropathy

The ICD-10 code for lumbar facet arthropathy is M46.96, used when facet arthropathy is documented without spondylosis.

Primary ICD-10-CM Codes for lumbar facet arthropathy

Unspecified inflammatory spondylopathy, lumbar region
Billable Code

Decision Criteria

clinical Criteria

  • Facet joint degeneration on imaging without spondylosis

Applicable To

  • Facet arthropathy without specific mention of spondylosis

Excludes

  • Spondylosis with myelopathy or radiculopathy

Clinical Validation Requirements

  • Imaging showing facet joint degeneration
  • Pain localized to lumbar region without radiculopathy

Code-Specific Risks

  • Confusion with M47.816 if spondylosis is not documented

Coding Notes

  • Ensure documentation clearly differentiates between facet arthropathy and spondylosis.

Ancillary Codes

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

Low back pain

M54.5
Use as a secondary code if pain is a primary focus of care.

Differential Codes

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

Spondylosis without myelopathy or radiculopathy, lumbar region

M47.816
Use when facet changes are explicitly linked to spondylosis.

Unspecified inflammatory spondylopathy, lumbar region

M46.96
Use when facet arthropathy is not linked to spondylosis.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Lumbar Facet Arthropathy to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code M46.96.

Impact

Clinical: May lead to inappropriate treatment plans., Regulatory: Non-compliance with documentation standards., Financial: Potential for claim denials due to lack of specificity.

Mitigation Strategy

Ensure detailed documentation of pain characteristics, Include imaging and diagnostic test results

Impact

Reimbursement: Incorrect coding may lead to claim denials., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data representation.

Mitigation Strategy

Use M46.96 for facet arthropathy without spondylosis.

Impact

Lack of documentation for conservative management prior to interventions.

Mitigation Strategy

Ensure thorough documentation of all conservative treatments attempted.

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 Lumbar Facet Arthropathy, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Lumbar Facet Arthropathy

Use these documentation templates to ensure complete and accurate documentation for Lumbar Facet Arthropathy. These templates include all required elements for proper coding and billing.

Pain Management Progress Note

Specialty: Pain Management

Required Elements

  • Subjective pain description
  • Objective findings
  • Imaging results
  • Assessment and plan

Example Documentation

**Subjective**: 'Sharp, non-radiating LBP rated 7/10, exacerbated by twisting. No leg weakness.' **Objective**: Tenderness: L4-L5 facets on palpation. ROM: Limited extension (50% normal). Imaging: MRI L-spine (3/2025) shows L4-L5 facet hypertrophy. **Assessment**: Lumbar facet arthropathy (M46.96). **Plan**: L4-L5 medial branch block scheduled.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Patient has back pain. Recommend PT.
Good Documentation Example
Severe axial LBP at L4-L5, worsened by extension. MRI shows L4-L5 facet hypertrophy without disc herniation. Positive response to L4 medial branch block (80% relief).
Explanation
The good example provides specific details about the location, imaging findings, and response to treatment, which are necessary for accurate coding.

Need help with ICD-10 coding for Lumbar Facet Arthropathy? Ask your questions below.

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