October 1, 2026 marks an important ICD-10-CM update for podiatry practices. Although many providers refer to these as the 2026 ICD-10 changes, CMS classifies the applicable diagnosis-code files as the FY 2027 ICD-10-CM update because they apply to encounters from October 1, 2026, through September 30, 2027.
This update is particularly pertinent to podiatrists as it has seen revisions to include plantar fasciitis and other diagnoses of the foot. The revision of plantar fasciitis has added three new codes to include right foot, left foot and unspecified foot. Plantar fascial fibromatosis has been further categorized by laterality.
One dose of the plantar fasciitis per day will not always be nice enough for your podiatry office to dissect the coding process. CDI may additionally impact the choice of analysis, documentation, medical necessity, declare edits, payer evaluation and compensation.
This isn’t just about downloading a new list of codes! The patient care team must know what diagnoses changed, update their systems, evaluate documentation practices, and track claims after the effective date.
The 2026 Podiatry Coding Update at a Glance
The first step is understanding the effective date.
The ICD-10-CM files for FY 2027 Encounter Processing System (EPS) encounter will use FY 2027 ICD-10-CM files (October 1, 2026 – September 30, 2027) will include the new code tables, addendum, conversion table and approved coding guidelines.
Practices can review the official 2027 ICD-10-CM files from CMS to verify the applicable code tables, addenda, conversion files, and coding guidelines for the new coding year.
For podiatry practices, that’s the equivalent of your billing department considering October 1 just another date on the calendar. That’s a coding transition point.
If a new or revised code set has been released for the date of service, the claim should be adjudicated under that code set. EHR diagnosis libraries, coding guidebooks, superbills, charge-entry tools and employee training material should be updated accordingly.
Plantar Fasciitis Gets Dedicated Diagnosis Codes
One of the most noticeable changes for podiatrists involves plantar fasciitis.
The new codes are:
| Code | Description |
| M67.A01 | Plantar fasciitis, right foot |
| M67.A02 | Plantar fasciitis, left foot |
| M67.A09 | Plantar fasciitis, unspecified foot |
CMS lists these codes as effective October 1, 2026.
This change provides a direct coding route for plantar fasciitis, rather than the historic association with plantar fasciitis and the M72.2 classification.
A most important concern for podiatrist billing companies is not having to memorize three new CPT codes. The more important concern is not having the diagnosis as recorded by the provider being appropriately translated onto the claim.
M72.2 and Plantar Fascial Fibromatosis Also Need Attention
The update also changes how the M72.2 category should be interpreted.
Plantar fasciitis is no longer an inclusion term under M72.2. The updated code structure identifies plantar fascial fibromatosis separately:
- M72.20 – unspecified foot
- M72.21 – right foot
- M72.22 – left foot
CMS lists these plantar fascial fibromatosis codes separately from the new plantar fasciitis codes.
This is such an important distinction because any condition of the plantar fascia does not automatically indicate you have plantar fasciitis.
Instead of coding randomly by the location, the coding staff should go through the diagnosis and documentation that the provider has noted down.
What Other Podiatry Areas Should Be Reviewed?
The best way to approach annual ICD-10 changes is to review the diagnoses that a practice bills most frequently.
A podiatry practice may want to audit code families related to:
- Plantar fasciitis
- Plantar fascial fibromatosis
- Foot and ankle conditions
- Diabetic foot conditions
- Foot ulcers
- Wounds
- Nail disorders
- Corns and calluses
- Deformities
- Fractures
- Infections
- Postoperative conditions
- Musculoskeletal disorders
Not every diagnosis in these areas necessarily changed in the same way. The point is to verify frequently used diagnoses against the current ICD-10-CM code set instead of assuming that last year’s code list remains accurate.
Why Annual ICD-10 Updates Affect Revenue Cycle Management
Diagnosis coding sits at the beginning of a much larger billing process.
A typical podiatry claim moves through several stages:
Documentation → Coding → Charge Entry → Claim Scrubbing → Submission → Adjudication → Payment or Denial
An error at the coding stage can follow the claim through the rest of the revenue cycle.
For example, a diagnosis may be input correctly but a dropped code may be selected during charge entry. The claim then could trigger a payer edit or be a manual review and the staff needs to find time to correct and resubmit the claim and delay the payer payment.
This is one of the reasons why you should be auditing your coding changes both pre- and post-yearly updates.
Documentation Should Drive Diagnosis Selection
The ICD-10 update does not change the basic principle that coding should be supported by provider documentation.
Accurate medical coding services rely on complete provider documentation to select the appropriate ICD-10-CM, CPT, and HCPCS codes and reduce avoidable claim errors.
Podiatry documentation should give the coding team enough information to understand:
- The condition being treated
- The anatomical site
- Laterality when applicable
- Relevant clinical findings
- Medical necessity
- Treatment provided
- Relationship between the diagnosis and service
In the case of the foot and ankle: be careful when it comes to laterality.
The practice lost the crucial information that was entered on the patient record if a right foot diagnosis is entered on the problem list but an unspecified diagnosis is present on the claim.
If the documentation is not much specific as to distinguish two, a physician should not be assumed to have a specific diagnosis in order to close such claim.
A Practical ICD-10 Update Checklist for Podiatrists
Rather than waiting for denials to reveal problems, practices can use a simple transition checklist.
Identify High-Volume Diagnosis Codes
Review the diagnoses your practice reports most frequently.
Focus first on codes responsible for a significant percentage of your podiatry claims.
Compare Them With the Current Code Set
Check each frequently used diagnosis against the applicable CMS code files.
CMS provides current ICD-10-CM code tables, addenda, conversion files, and official coding guidelines.
Update EHR Diagnosis Lists
Old codes may remain available in EHR favorites or custom templates.
Remove or flag outdated selections where an appropriate and make current codes easy for the providers and coders to locate.
Review Superbills and Charge Sheets
If the practice uses printed or the electronic superbills, make sure thet the diagnosis options match a current coding year.
Train Billing Staff
Coder, biller, and clinical staff need to see impact of changes in the action.
A brief training session may be more impactful than the providing a bulky codebook that the outline what has a changed.
Audit Early Claims
After the update becomes effective, review a sample of claims.
Look for:
- Wrong diagnosis codes
- Unspecified codes
- Laterality errors
- Diagnosis-to-procedure mismatches
- Claim edits
- Denials
- Documentation gaps
Track Payer Responses
Not every issue appears immediately.
Monitor denials and payer requests during the first few billing cycles after the transition.
Common Podiatry Coding Problems After an ICD-10 Update
Using Last Year’s Codes
This is one of the easiest mistakes to make.
The billing department will need to understand the initial set of the codes that they should have been billing appropriately for a new procedure even if billing records or a EHR wasn’t changed to account for the new set of the codes.
Choosing Codes Based on Habit
Those seasoned billers will recall old familiar codes. That’s a good thing, but even the best habits can become spoiled by that yearly refresh.
Codes should, whenever possible, support professional judgment, not supplant it.
Missing Laterality
Most of the foot/ankle diagnoses require left-or-right information.
Laterality: If this information is recorded in the documentation then it should be copied over to coding.
Confusing Similar Diagnoses
The plantar fasciitis update illustrates why similar anatomical terms should not be treated as interchangeable.
The new plantar fasciitis codes are separate from the plantar fascial fibromatosis codes.
Failing to Review Denial Trends
A coding update can produce a noticeable change in denial patterns.
If a practice sees sudden increase in the diagnosis-related denials after October 1, billing managers must be investigate the underlying reason instead of the treating each denial separately.
Podiatry Billing Updates Should Go Beyond ICD-10
ICD-10 is only one component of a podiatry claim.
Practices also need to consider:
- CPT coding
- HCPCS coding
- Modifiers
- Documentation
- Medical necessity
- Payer policies
- Authorization requirements
- Eligibility
- Claim filing deadlines
- Payment posting
- Accounts receivable
- Denial management
This is especially critical in podiatry practices that perform wound care, diabetic foot care, surgery, orthotics, injections and other services that have specific payer requirements.
A diagnosis code may be correct while another claim element is still causing a denial.
Medicare Podiatry Coverage and Documentation
Podiatry practices must also separate out ICD-10 coding updates from coverage guidelines.
So, for instance, Medicare coverage is based on medical need and certain coverage requirements. The Why They are Covered – Medicare Podiatry Coverage In 2026 for Maine Billing Services provides information on covered services, routine foot-care exceptions, documentation and common errors made when billing for podiatry.
That distinction is important because having a valid diagnosis code won’t necessarily make the request for payment valid.
Coverage, documentation, coding, and medical-necessity requirements of the relevant payer must be met for the claim.
Wound Care Is Another Area Worth Reviewing
Podiatrists frequently provide wound and diabetic foot care, making wound-related coding another area that deserves attention during a broader ICD-10 review. For practices that regularly treat these conditions, wound care billing services can help coordinate wound documentation, ICD-10-CM coding, claim submission, and payer requirements.
Wound coding depends on factors such as:
- Wound type
- Location
- Laterality
- Severity
- Depth
- Healing status
- Associated conditions
- Clinical documentation
For a more detailed discussion of diagnosis specificity, laterality, and wound documentation, see our guide to wound care ICD-10 codes. Key points of the complete coding ICD10 guide from Maine Billing Services.
Any podiatry practice that treats wound care is therefore recommended to have an annual coding review of both podiatry-specific diagnoses and the wound diagnoses that are most often submitted on the claim.
When Outsourcing Podiatry Coding Makes Sense
Annual coding updates can be difficult for smaller practices with limited administrative staff.
An in-house biller may already be responsible for:
- Charge entry
- Claim submission
- Payment posting
- Insurance calls
- Denial follow-up
- Patient balances
- A/R
- Credentialing
- Reporting
An additional annual ICD-10 transition on top of this workload could lead to an increased risk of missed updates.
Podiatry coding services can offer a dedicated diagnosis review for selection, documentation and claim requirements. Many of the general podiatry medical billing services will also handle coding in conjunction with claims, payer follow-up and denial management.
It’s not just about hands off a task. It’s about keeping the same revenue-cycle process intact as coding and payer specifications evolve.
What Maine Podiatrists Should Review Before and After October 1
Maine practices can use a two-stage approach.
Before the Effective Date
Review the current code set, identify affected diagnoses, update EHR tools, and educate providers and billing staff.
After the Effective Date
Auditing processed claims, monitoring denial reports, reviewing payer responses, and correcting common problems.
It may especially help practices that are billing more than one insurance network. The payer policy can be different, even though the underlying ICD-10-CM code would be the same.
Billing workflows will comply with Maine Care, Medicare and commercial payer rules as appropriate.
How a Maine Billing Partner Can Support the Transition
A specialized billing partner can connect the coding update to the rest of the revenue cycle.
Maine Billing Services’ live podiatry billing services describes support for podiatry medical billing, coding, eligibility verification, credentialing, accounts receivable follow-up, denial management, and other podiatry-specific billing functions.
The company also offers charge entry and coding, claim submission, insurance verification, payment posting, provider credentialing, A/R collection and management, as well as denial management.
That kind of a linked approach can prevent practices from seeing coding and billing as distinct tasks.
What a Strong Podiatry Billing Workflow Looks Like
A reliable workflow should connect every stage:
- Patient registration
Capture accurate demographic and insurance information. - Eligibility verification
Confirm coverage, benefits, and authorization requirements when applicable. - Clinical documentation
Ensure the provider documents the condition and service clearly. - Diagnosis and procedure coding
Assign current ICD-10-CM, CPT, and HCPCS codes based on documentation. - Claim review
Check for coding, modifier, payer, and documentation issues. - Claim submission
Submit the clean claim within the payer’s filing requirements. - Payment posting
Reconcile payer payments and patient responsibility. - Denial management
Identify root causes and correct preventable issues. - A/R follow-up
Track unpaid and aging claims until resolution.
A yearly ICD-10 update affects several of these steps, which is why practices should treat it as a revenue-cycle event rather than only a coding event.
Final Takeaway for 2026 Podiatry Coding
2026 ICD-10 changes There is one new change to the ICD-10 that Podiatrists will need to adapt to in 2026. The most significant from this new iteration will be the new release of the true plantar fasciitis codes: M67.A01, M67.A02, and M67.A09. Where plantar fascial fibromatosis now has its own laterality-specific codes.
More importantly, there is something here that can actually be applied to all of you. Every time a new set of ICD-10-CM coding codes are issued, your foot and ankle doc needs to reconsider his or her diagnosis-coding strategy.
EHR list updates, high-volume diagnoses, staff training, proofing documentation, denials reduction and payer requirement reviews can stop those little coding changes from turning into a game-day revenue hemorrhage.
A Maine podiatrist’s revenue cycle will improve by integrating accurate podiatry medical billing and coding along with transmission of clean claim and denials resolution, A/R follow up and payer by payer billing.
For practices looking to streamline coding, claims, denial management, and A/R follow-up, partnering with the best medical billing services in Maine can help connect these revenue-cycle processes under one workflow.
Frequently Asked Questions
When do the 2026 ICD-10 changes for podiatry take effect?
The applicable ICD-10-CM update becomes effective October 1, 2026, for encounters from October 1, 2026, through September 30, 2027. CMS classifies these files as the FY 2027 update.
What are the new plantar fasciitis codes?
The new codes are M67.A01 for the right foot, M67.A02 for the left foot, and M67.A09 for an unspecified foot.
Did plantar fasciitis change under M72.2?
Yes. Plantar fasciitis is separated from the M72.2 plantar fascial fibromatosis category. M72.2 now has laterality-specific plantar fascial fibromatosis codes.
Does a new ICD-10 code guarantee insurance reimbursement?
No. A valid diagnosis code does not automatically establish coverage or payment. Documentation, medical necessity, procedure coding, payer policies, eligibility, authorization, and other claim requirements can also affect reimbursement.
Why should podiatrists review their EHR diagnosis lists?
EHRs can retain outdated diagnosis choices after a code update. Reviewing diagnosis libraries, favorites, templates, and superbills helps ensure providers and billers have access to the applicable codes for the encounter date.