What is the ICD-10 code for posterior tibial tendinitis?

The ICD-10 code for posterior tibial tendinitis is M76.82-, with specific codes for right (M76.821), left (M76.822), and unspecified (M76.829) foot involvement.

How is posterior tibial tendinitis documented?

Documentation should include laterality, imaging findings, and functional limitations such as inability to perform a single-leg heel raise.

ICD-10 Coding for Posterior Tibial Tendinitis(M76.821, G57.5, M21.4)

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Learn about the ICD-10 coding for posterior tibial tendinitis, including documentation requirements and common pitfalls.

Also known as:

PTTDPosterior Tibial Tendon Dysfunction

Related ICD-10 Code Ranges

Complete code families applicable to Posterior Tibial Tendinitis

M00-M99Primary Range

Diseases of the musculoskeletal system and connective tissue

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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
M76.821	Other enthesopathy of right foot	Use when the patient has posterior tibial tendinitis affecting the right foot.	Pain and swelling along the medial ankle Positive single-leg heel raise test Ultrasound or MRI confirming tendinitis
M76.822	Other enthesopathy of left foot	Use when the patient has posterior tibial tendinitis affecting the left foot.	Tenderness distal to medial malleolus MRI showing tendon thickening Inability to perform single-leg heel raise
M76.829	Other enthesopathy of unspecified foot	Use only when laterality cannot be determined after thorough examination and imaging.	Generalized pain without specific laterality Imaging not specifying laterality
M66.37	Spontaneous rupture of other tendons, ankle and foot	Use when there is a confirmed rupture of the posterior tibial tendon.	MRI showing tendon discontinuity Surgical confirmation of rupture

Primary ICD-10-CM Codes

Posterior tibial tendinitis, right leg

M76.821Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Anterior tibial syndromeM76.81

Tarsal tunnel syndromeG57.5

Achilles tendon injuryS86.09

Documentation & Coding Risks

Avoid these common issues when documenting Posterior Tibial Tendinitis.

Using unspecified codes when laterality is known

Impact

Clinical: Leads to less precise treatment plans., Regulatory: Non-compliance with coding standards., Financial: Potential for claim denials or reduced reimbursement.

Mitigation

Review documentation for laterality before coding., Educate staff on the importance of specifying laterality.

Confusing tendinitis with tendon rupture

Impact

Reimbursement: Incorrect coding can lead to denied claims or incorrect DRG assignment., Compliance: Misclassification may result in audit findings., Data Quality: Affects the accuracy of clinical data and patient records.

Mitigation

Use M66.37 for confirmed ruptures and M76.82- for tendinitis.

Omitting laterality in documentation

Impact

Reimbursement: Claims may be denied due to lack of specificity., Compliance: Non-compliance with ICD-10 coding guidelines., Data Quality: Leads to incomplete patient records.

Mitigation

Always specify right, left, or unspecified in documentation.

Use of unspecified codes

Impact

Frequent use of unspecified codes can trigger audits.

Mitigation

Ensure thorough documentation of laterality and specific findings.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with M76.821.

Primary Code

M76.821

Posterior tibial tendinitis, right leg

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ICD-10 codes12

Coding risks4

FAQs2

ICD-10 Coding for Posterior Tibial Tendinitis(M76.821, G57.5, M21.4)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for posterior tibial tendinitis?

How is posterior tibial tendinitis documented?

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