What is the ICD-10 code for piriformis syndrome?

The ICD-10 codes for piriformis syndrome are G57.01 for right-sided involvement, G57.02 for left-sided involvement, and M62.85 for piriformis muscle disorder without sciatica.

How do you code piriformis syndrome with sciatica?

For piriformis syndrome with sciatica, use G57.01 for right-sided and G57.02 for left-sided involvement, ensuring documentation supports sciatic nerve compression.

ICD-10 Coding for Piriformis Syndrome(G57.01, G57.0, G57.02)

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Comprehensive guide to ICD-10 coding for piriformis syndrome, including documentation requirements and common coding pitfalls.

Also known as:

Piriformis Muscle SyndromePiriformis Syndrome with Sciatica

Related ICD-10 Code Ranges

Complete code families applicable to Piriformis Syndrome

G00-G99Primary Range

Diseases of the nervous system

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
G57.01	Lesion of sciatic nerve, right lower limb	Use when right-sided piriformis syndrome with sciatic nerve compression is confirmed.	Right-sided deep buttock pain radiating to posterior thigh Positive Pace/Freiberg signs MRI excludes lumbar pathology
G57.02	Lesion of sciatic nerve, left lower limb	Use when left-sided piriformis syndrome with sciatic nerve compression is confirmed.	Left piriformis tenderness on palpation Pain exacerbated by prolonged sitting Resolved with trigger point injection
M62.85	Muscle spasm	Use when piriformis muscle disorder is present without sciatic nerve involvement.	Piriformis spasm confirmed on EMG No radicular symptoms or neurological deficits

Primary ICD-10-CM Codes

Lesion of sciatic nerve, right lower limb

G57.01Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Sciatica, unspecified sideM54.30

Use only if sciatic nerve involvement is explicitly documented without piriformis syndrome.

Lesion of sciatic nerve, right lower limbG57.01

Use when sciatic nerve involvement is confirmed.

Documentation & Coding Risks

Avoid these common issues when documenting Piriformis Syndrome.

Omitting laterality in documentation

Impact

Clinical: Impacts treatment accuracy., Regulatory: Non-compliance with coding standards., Financial: Potential for claim denials.

Mitigation

Always document side of involvement.

Using 64445 for piriformis injection

Impact

Reimbursement: Incorrect billing may lead to denials., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate data on treatment provided.

Mitigation

Use 20552 + 76942 for muscle injection

Coding M54.3 without sciatica

Impact

Reimbursement: Incorrect DRG assignment., Compliance: Potential audit risk., Data Quality: Misrepresentation of clinical condition.

Mitigation

Use M62.85 for isolated piriformis disorder

Incorrect use of sciatica codes

Impact

Using M54.3 without documented sciatica.

Mitigation

Ensure documentation supports sciatica diagnosis.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with G57.01.

Primary Code

G57.01

Lesion of sciatic nerve, right lower limb

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ICD-10 codes10

Coding risks4

FAQs2

ICD-10 Coding for Piriformis Syndrome(G57.01, G57.0, G57.02)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for piriformis syndrome?

How do you code piriformis syndrome with sciatica?

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