What is the ICD-10 code for posterior tibial tendon dysfunction?

The ICD-10 code for posterior tibial tendon dysfunction is M76.82-, with specific codes for laterality and stage.

How do you code a complete rupture of the posterior tibial tendon?

Use ICD-10 code M66.37- for a complete rupture of the posterior tibial tendon, specifying laterality.

ICD-10 Coding for Posterior Tibial Tendon Dysfunction(M76.821, M21.4, M21.41)

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Learn about the ICD-10 coding for posterior tibial tendon dysfunction, including specific codes for different stages and laterality.

Also known as:

PTTDAdult Acquired Flatfoot

Related ICD-10 Code Ranges

Complete code families applicable to Posterior Tibial Tendon Dysfunction

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 for stage I or early stage II PTTD without complete rupture.	Pain and swelling along the medial ankle MRI showing tendon thickening or tenosynovitis
M66.371	Spontaneous rupture of flexor tendons, right foot	Use when there is a confirmed complete rupture of the tendon.	MRI confirming complete tendon discontinuity Inability to perform single-leg heel rise
M21.41	Acquired flat foot, right foot	Use to document flatfoot deformity associated with PTTD.	Weight-bearing X-ray showing decreased arch height

Primary ICD-10-CM Codes

Posterior tibial tendinitis, right leg

M76.821Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Spontaneous rupture of flexor tendons, right footM66.371

Use when MRI confirms complete tendon rupture.

Other enthesopathy of right footM76.821

Use for tenosynovitis without rupture.

Documentation & Coding Risks

Avoid these common issues when documenting Posterior Tibial Tendon Dysfunction.

Omitting laterality in documentation.

Impact

Clinical: Leads to treatment errors., Regulatory: Non-compliance with coding standards., Financial: Potential claim denials.

Mitigation

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

Using non-specific codes for PTTD stages.

Impact

Reimbursement: Incorrect coding can lead to denied claims., Compliance: Non-compliance with coding guidelines., Data Quality: Impacts the accuracy of clinical data.

Mitigation

Specify the stage and laterality in documentation to select the correct code.

Incomplete documentation

Impact

Failure to document the stage and laterality of PTTD.

Mitigation

Use detailed templates and checklists.

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 codes7

Coding risks3

FAQs2

ICD-10 Coding for Posterior Tibial Tendon Dysfunction(M76.821, M21.4, M21.41)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for posterior tibial tendon dysfunction?

How do you code a complete rupture of the posterior tibial tendon?

Related condition guides