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

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

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescription
M76.821Other enthesopathy of right foot
M66.371Spontaneous rupture of flexor tendons, right foot
M21.41Acquired flat foot, right foot

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

Essential facts and insights aboutPosterior Tibial Tendon Dysfunction

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