The New Plantar Fasciitis ICD-10 Codes for 2026: A Complete Coding Guide for M67.A01, M67.A02, and M67.A09

7 Oct 2026 • 6 Min Read

Every now and then ICD-10 codes change that on one hand ease the diagnosis process and specificity but on the other hand increases the risk of claim denials if providers don’t comply with new standards. A similar thing happened on October 1, 2026, when the Centers for Medicare & Medicaid Services (CMS) and CDC officially updated how healthcare providers document and bill for heel pain and fascial conditions. Under these new 2026 ICD-10 changes for podiatry practices, the legacy code M72.2, which has been replaced with new M67.A to document highly specific, laterality-based designations. 

Now, podiatrists and billing teams who previously rely on M72.2, must distinguish plantar fasciitis using M67.A01 for the right foot, M67.A02 for the left foot, and M67.A09 for an unspecified foot. This change has allowed providers greater diagnostic specificity while separating plantar fasciitis from plantar fascial fibromatosis. This guide will help you select a new diagnosis code. EHR templates, superbills, coding protocols, and billing workflows while protecting your practice from clawbacks and non-compliance issues. By improving coding accuracy, documentation consistency, healthcare practices can drastically reduce preventable claim rejections. 

Out with M72.2: What the 2026 ICD-10 Update Means for Your Practice

The latest plantar fasciitis ICD-10 code 2026 changes allows healthcare providers to be more specific in clinical documentations while treating common foot conditions. This revised diagnosis coding system creates a dedicated pathway for plantar fasciitis, including identification of the affected foot.

The Transition Away from M72.2

M72.2 has been used for years as a standalone universal option to cover both conditions including plantar fascial fibromatosis and standard heel pain caused by plantar fasciitis. But now under the revised 2026 ICD-10 changes for podiatry, the use of this code is considered invalid and obsolete. 

M72.2 is now exclusively reserved for plantar fascial fibromatosis (Ledderhose disease) and the standard inflammatory conditions of the plantar fascia have been completely stripped from this code. Now practices must transition to new dedicated codes under the new M67.A family.   

Why CMS Made the Change

The new changes introduced by The Centers for Medicare & Medicaid Services (CMS) enables greater clinical precision in anatomical laterality when reporting lower-extremity soft tissue disorders. Since the standard M72.2 ICD code is now retired, the payer’s team can better correlate the treatment outcomes with the medical necessity requirements.

Now podiatry clinics must adapt the EHR documentation to align the diagnosis codes with the new plantar fasciitis ICD-10 code 2026. Doing this ensures accurate clinical presentations, preventing claims processing delays across commercial and Medicare lines.

Breakdown of the New Plantar Fasciitis Codes: M67.A01, M67.A02, & M67.A09

The new ICD-10 codes for plantar fasciitis diagnosis and treatment give more freedom and precision to podiatrists for identifying which foot is affected. These codes are part of the FY 2027 ICD-10-CM update effective October 1, 2026, so practices should ensure documentation supports the code selected for each encounter.  

The M67.A0- Subcategory Breakdown

New ICD-10 changes to podiatry coding has introduced a new subcategory M67.A0- (Plantar fasciitis), which enforces anatomical laterality for all general plantar fasciitis cases. These are the three distinct diagnosis codes that medical billers and providers must choose from based on the affected site:   

M67.A01: Plantar Fasciitis, Right Foot

Append M67.A01 plantar fasciitis when the patient’s right foot is affected by the pain and inflammation. 

M67.A02: Plantar Fasciitis, Left Foot

Use M67.A02 plantar fasciitis for left foot complications exclusively to maintain accuracy in documentations. 

M67.A09: Plantar Fasciitis, Unspecified Foot

Many practices in emergency settings rely on M67.A09 plantar fasciitis when the affected foot is not specified. But using it carelessly presents significant reimbursement risks for practices because commercial health plans and Medicare administrative contractors (MACs) scrutinize these claims routinely for lack of medical necessity.     

How to Handle Bilateral Presentations

In situations where a patient is experiencing the symptoms in both feets, there’s no single bilateral code under the M67.A0 classification. Under the new 2026 plantar fasciitis ICD-10 coding standard, providers are allowed to use both M67.A01 (Right) and M67.A02 (Left) on separate diagnosis lines to record findings in the billing claim.   

Actionable Workflow Adjustments for Podiatrists and Billing Teams

The new plantar fasciitis ICD-10 codes for 2026 demands coordinated changes across all parts of the revenue cycle including clinical documentation and billing. For better compliance and avoidance of cash flow disruption, practices must focus on capturing laterality correctly from the patient encounter through final claim submission.

Strengthen Laterality Documentation

It’s important for podiatrists and attending physicians to identify the affected foot within physical exam findings and assessment notes (e.g., “Right heel pain localized to the medial calcaneal tubercle”). Clear and precise anatomical documentation ensures medical coders accurately assign M67.A01 plantar fasciitis or M67.A02 plantar fasciitis confidently without relying on unspecified M67.A09 code. 

Update EHR and Superbill Selections

Medical billers and practice managers must audit the Electronic Health Record (EHR) systems at their disposal. Legacy codes like M72.2 must be removed as default shortcuts for routine heel pain and replaced with the M67.A0- series to prevent coding errors at the point of care. 

Ensuring Claims Cleanliness with CPT Modifiers

Medical practices can maintain clean claims through accurate aligning of diagnosis laterality with procedural coding. It’s essential that billing injection therapies, strapping, or custom orthotics, must correspond with the accurate CPT modifier (RT for right, LT for left, or 50 for bilateral procedures). When the provider notes are clear, it helps medical billers to align the diagnosis codes with CPT modifiers, preventing automated clearinghouse rejections and ensures prompt reimbursement under the M72.2 ICD-10 update.  

Conclusion & Practice Checklist

It’s imperative for podiatry practices to adapt to the new Plantar Fasciitis ICD-10 codes for 2026. Doing so will protect your hard-earned revenue, keep the payer’s audit team away from your practice and maintain the highest level of billing compliance. Transitioning from legacy and outdated code M72.2 to site-specific codes like M67.A01, M67.A02 ensures laterality is accurately documented and medical necessity requirements are met. Here’s a practice readiness checklist you can use to enhance the accuracy of your claims. 

Practice Readiness Checklist

  • Update EHR templates and diagnosis selections for the new codes.
  • Educate providers on documenting right- or left-foot involvement.
  • Retrain billing teams on M67.A01, M67.A02, and M67.A09.
  • Review claims carefully for diagnosis and modifier consistency.

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