LCDs are the rulebook for podiatry Medicare billing โ and they're written in language designed for policy analysts, not physicians. This guide explains what Local Coverage Determinations are, which ones govern your practice, and why missing an LCD update can cause claim denials, audits, and repayment demands without any warning.
What Is an LCD?
A Local Coverage Determination is a policy document published by a Medicare Administrative Contractor (MAC) โ the private companies that process Medicare claims on behalf of CMS โ that defines whether a specific service is covered under Medicare in a specific geographic region. LCDs specify:
- Which diagnosis codes support medical necessity for a given procedure
- What documentation must be present in the medical record
- What clinical criteria must be met for coverage
- Any frequency limitations or quantity restrictions
- When a service is considered not medically necessary and will be denied
The key word in "Local" Coverage Determination is local. An LCD is specific to the MAC jurisdiction where a claim is submitted. If you practice in Indiana, your claims are processed by a different MAC than a podiatrist in Florida โ and the LCDs that govern your billing may differ from theirs, even for the same CPT codes.
How LCDs Differ from National Coverage Determinations
Medicare coverage policy comes from two sources. National Coverage Determinations (NCDs) are issued by CMS and apply uniformly nationwide โ every MAC must follow them. LCDs are issued by individual MACs and apply only within their jurisdiction.
For podiatry, the most important coverage rules โ especially for routine foot care โ are governed primarily by LCDs, not NCDs. This means your compliance requirements are jurisdiction-specific and cannot be assumed to be the same as a podiatrist you know who practices in a different state.
The MAC Jurisdictions That Matter for Podiatry
Verify your MAC at the CMS website โ MAC assignments change periodically as CMS rebids contracts.
Key Podiatry LCDs and What They Cover
Routine Foot Care (CPT 11055โ11057, 11720โ11721)
Every MAC has an LCD governing routine foot care. These LCDs specify the Class Finding requirements, qualifying systemic conditions, and documentation standards. They are the source of the Class A/B/C Finding classification. Check your MAC's current routine foot care LCD โ the LCD numbers vary by jurisdiction.
Plantar Fascia Injections (CPT 64455)
Some MACs have separate LCDs for plantar fascia injections. Common coverage criteria include: documentation of conservative treatment failure (typically 6โ8 weeks of conservative care), imaging support when available, and frequency limitations (often no more than 3 injections per year per foot). Some jurisdictions have tightened these criteria in the past 24 months.
Surgical Procedures (CPT 28285, etc.)
Surgical podiatric procedures are generally governed by medical necessity documentation requirements rather than separate LCDs, but some procedures have specific LCD coverage criteria. Hammertoe correction (28285) typically requires documentation of conservative treatment trial, functional impairment, and surgical necessity that goes beyond cosmetic correction.
How LCDs Change โ and Why You Often Don't Know
When a MAC wants to update an LCD, the process works like this:
- The MAC publishes a "proposed LCD" with a comment period (usually 45 days)
- Stakeholders โ including specialty societies like APMA โ can submit comments
- The MAC publishes the final LCD with an effective date
- Claims submitted after the effective date are adjudicated under the new LCD
At no point in this process is your practice directly notified. If you're not monitoring your MAC's website โ or subscribing to a service that does โ you simply won't know the rule changed until your claims start being denied, or worse, until you receive an audit request for claims you submitted under outdated standards.
A practice that doesn't notice an LCD update to routine foot care documentation requirements might bill correctly under the old standard for several months before the MAC identifies the pattern. By then, extrapolation โ where auditors apply your error rate across all similar claims โ can turn a documentation change into a six-figure repayment demand.
How to Find Your Applicable LCDs
The CMS Medicare Coverage Database (MCD) at cms.gov is the authoritative source for all active LCDs. To find the LCDs that apply to your practice:
- Navigate to the CMS MCD and select "Local Coverage Determinations"
- Search by CPT code for the procedure you're looking up
- Filter by your MAC contractor or by state to find jurisdiction-specific LCDs
- Review the "Article" associated with each LCD โ it often contains more specific documentation guidance than the LCD itself
- Note the effective date and any revision history
The Difference Between an LCD and an LCD Article
LCDs have companion documents called "LCD Articles" that most practices never read. Articles contain more detailed documentation guidance, including specific examples of what is and is not acceptable documentation. For podiatry, the Article associated with the routine foot care LCD typically contains the specific language around Class Findings and the systemic condition documentation requirement.
If you review only the LCD and not the Article, you may miss important documentation guidance. Both documents apply to your claims adjudication.
What to Do When an LCD Changes
- Read the full revised LCD and Article โ not just a summary. The specific language matters for documentation.
- Identify the effective date โ claims before the effective date follow the old LCD; claims on or after follow the new one.
- Update your EHR templates before the effective date.
- Brief your billing staff on what changed and how it affects claim submission.
- Consider a retrospective audit of recent claims under the old standard to establish a baseline.
Monitoring your MAC's LCD update page monthly is the minimum cadence for podiatry compliance. For most independent practices, a service that does this monitoring automatically and summarizes the changes for your specialty is far more reliable than hoping you catch a publication buried in a MAC newsletter.
Disclaimer: LCD requirements vary by MAC jurisdiction and are updated periodically. Always verify current requirements directly with your MAC's active LCD and consult a qualified healthcare attorney for advice specific to your practice situation.