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ICD-10 Coding for Tethered Cord Syndrome(Q06.8, G99.2)

Complete ICD-10-CM coding and documentation guide for Tethered Cord Syndrome. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Tethered Spinal CordTethered Cord

Related ICD-10 Code Ranges

Complete code families applicable to Tethered Cord Syndrome

Q06-Q07Primary Range

Congenital malformations of the nervous system

Includes congenital tethered cord syndrome as a malformation of the spinal cord.

Other disorders of nervous system

Used for acquired tethered cord syndrome due to post-surgical scarring or trauma.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
Q06.8Other congenital malformations of spinal cordUse for congenital tethered cord syndrome without other neural tube defects.
  • MRI showing low-lying conus medullaris below L2
  • Thickened filum terminale
G99.2Myelopathy in diseases classified elsewhereUse for acquired tethered cord syndrome due to post-surgical scarring.
  • Post-surgical adhesions causing cord tethering

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 tethered cord syndrome

Essential facts and insights about Tethered Cord Syndrome

The ICD-10 code for congenital tethered cord syndrome is Q06.8, while acquired cases are coded as G99.2.

Primary ICD-10-CM Codes for tethered cord

Other congenital malformations of spinal cord
Billable Code

Decision Criteria

clinical Criteria

  • Presence of congenital thickened filum terminale on imaging

documentation Criteria

  • MRI findings and clinical symptoms must be documented

Applicable To

  • Primary tethered cord without concurrent myelomeningocele/spina bifida

Excludes

  • Acquired tethered cord syndrome

Clinical Validation Requirements

  • MRI showing low-lying conus medullaris below L2
  • Thickened filum terminale

Code-Specific Risks

  • Misclassification as acquired tethered cord

Coding Notes

  • Ensure documentation specifies congenital origin to avoid misclassification.

Ancillary Codes

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

Neurogenic bladder, unspecified

N31.9
Use to document bladder dysfunction associated with tethered cord.

Postlaminectomy syndrome, not elsewhere classified

M96.1
Use to document post-surgical complications leading to tethering.

Differential Codes

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

Myelopathy in diseases classified elsewhere

G99.2
Use for acquired tethered cord syndrome due to post-surgical scarring.

Other congenital malformations of spinal cord

Q06.8
Use for congenital tethered cord syndrome.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Tethered Cord Syndrome to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code Q06.8.

Impact

Clinical: Inaccurate diagnosis and treatment planning., Regulatory: Non-compliance with coding guidelines., Financial: Potential for denied claims.

Mitigation Strategy

Review surgical history thoroughly, Document any previous spinal surgeries

Impact

Reimbursement: Incorrect DRG assignment leading to overpayment or underpayment., Compliance: Potential for audit discrepancies., Data Quality: Inaccurate clinical data affecting patient records.

Mitigation Strategy

Ensure documentation specifies the etiology of the tethered cord.

Impact

Incorrect sequencing of primary and secondary diagnoses.

Mitigation Strategy

Ensure primary structural anomaly is coded first, followed by manifestations.

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 Tethered Cord Syndrome, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Tethered Cord Syndrome

Use these documentation templates to ensure complete and accurate documentation for Tethered Cord Syndrome. These templates include all required elements for proper coding and billing.

Pediatric Primary Tethered Cord

Specialty: Pediatric Neurosurgery

Required Elements

  • Symptoms
  • Imaging results
  • Surgical findings

Example Documentation

3yo male with sacral dimple. MRI shows conus at L3, filum thickness 2mm. Urodynamics confirm neurogenic bladder. Intraop: Filum sectioned with histopath confirmation of fibrous/fatty infiltration.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Patient has tethered cord.
Good Documentation Example
MRI demonstrates low-lying conus at L3 with thickened filum terminale measuring >2mm in diameter, associated with lipomyelomeningocele. Symptoms include urinary retention and lower extremity weakness.
Explanation
The good example provides specific imaging findings and symptoms, supporting accurate coding.

Need help with ICD-10 coding for Tethered Cord Syndrome? Ask your questions below.

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