CPT Code 11310: Shaving of epidermal or dermal lesion, face

Key Takeaways

CPT Code 11310 covers shaving of a single epidermal or dermal lesion on the face, ears, eyelids, nose, lips, or mucous membrane with diameter 0.5 cm or less.

The 2026 Medicare non-facility national average rate is approximately $89.47. The facility rate is approximately $54.21.

Misclassifying lesion size or anatomical site is the top denial trigger for CPT Code 11310. Document the measured diameter and exact location in every operative note.

Pabau’s claims management software supports dermatology billing workflows with automated code checks and documentation templates that capture all required elements for the 11300 series.

CPT Code 11310 covers shaving of a single epidermal or dermal lesion on the face, ears, eyelids, nose, lips, or mucous membrane, with a diameter of 0.5 cm or less. Payers scrutinize both the anatomical site and the measured diameter at the time of claim submission, and a lesion measured at 0.6 cm triggers a different code entirely.

Most denials trace back to a missing measurement or an incorrect site code. This reference covers the official 2026 fee schedule, correct ICD-10 pairings, applicable modifiers, documentation requirements, and the most common denial reasons for CPT Code 11310.

Coders working in dermatology EMR software environments will find this guide useful for selecting CPT Code 11310 accurately and avoiding the most common submission errors.

CPT Code 11310: Official description and clinical scope

CPT Code 11310 carries the following official descriptor from the American Medical Association (AMA), the body that maintains the CPT code set:

Clinically, shaving means sharp removal of a lesion using a scalpel blade, razor, or similar instrument. Unlike excision, shaving does not require a full-thickness dermal incision. The technique removes the lesion at or below the epidermal-dermal junction without extending through the full dermis. Using an excision code, such as 11440, when shaving was performed constitutes upcoding and creates an OIG audit risk.

CPT Code 11310 in the shaving code family (11300-11313)

CPT Code 11310 belongs to the 11300-11313 series, which covers shaving of epidermal or dermal lesions across all body sites. Code selection depends on the anatomical location and the lesion diameter. Using the wrong code within this family is one of the most common coding errors in dermatology billing.

The face-site group (11310-11313) consistently reimburses at higher rates than the trunk group (11300-11303) due to the greater complexity of facial anatomy and the technical demands of working near sensitive structures. When multiple lesions are removed in the same session, each is billed separately using the appropriate code for its individual site and size.

CPT Code 11310 reimbursement and 2026 fee schedule

Reimbursement for CPT Code 11310 follows the Medicare Physician Fee Schedule (MPFS), published annually by the Centers for Medicare and Medicaid Services, or CMS. Rates vary by geographic locality and differ between facility and non-facility settings. The figures below reflect 2026 national averages. Verify your specific locality using the CMS MPFS Look-Up Tool.

The non-facility rate is higher because the physician’s practice absorbs the overhead costs (equipment, supplies, staff) when the procedure is performed in a private office. When performed in a hospital or ambulatory surgical center (ASC), the facility separately bills for those overhead costs, so Medicare pays the physician a lower professional component rate.

For current RVU values by locality, use the 2026 RVU lookup tool from FastRVU.

Medicare coverage and LCD policy for CPT Code 11310

Medicare coverage for lesion shaving procedures including CPT Code 11310 is governed by Local Coverage Determinations (LCDs). Two LCDs are most widely applicable: LCD A57113 and LCD A57482, both addressing removal of benign skin lesions. Coverage is contractor-specific, and the relevant MAC (Medicare Administrative Contractor) for your jurisdiction determines which LCD applies.

Review medical spa compliance requirements alongside CMS LCD guidance to understand how coverage criteria interact with documentation standards.

Under these LCDs, Medicare generally covers lesion shaving when at least one of the following clinical indications is documented:

• The lesion is symptomatic (bleeding, pain, recurrent irritation from clothing or activity)
• The lesion interferes with a bodily function (obstructs vision, impairs breathing through the nostril)
• The lesion has suspicious or potentially malignant characteristics requiring pathology
• The lesion has undergone rapid or unexplained change in size, color, or morphology

Cosmetic removal alone does not meet Medicare medical necessity criteria. Practices submitting CPT Code 11310 for asymptomatic cosmetic lesions without documented clinical indication will typically receive a medical necessity denial. Always document the specific symptom or functional impairment driving the procedure.

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Pabau's billing workflows help dermatology and skin practice teams capture every required documentation element for CPT Code 11310 before claim submission, reducing denials and rework.

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ICD-10 codes to pair with CPT Code 11310

Every CPT Code 11310 claim requires a supporting ICD-10-CM diagnosis code that establishes medical necessity. The diagnosis must match the documented clinical indication. Consult the CDC/NCHS ICD-10-CM web tool for the current official code list.

Pabau’s dermatology and skin practice teams also capture lesion characteristics, such as border irregularity, color changes, and prior treatment history, in structured records that directly support accurate ICD-10 code selection.

Some payers require laterality-specific codes for facial lesions. For example, D22.11 (right eyelid, including canthus) vs D22.12 (left eyelid, including canthus) is more specific than D22.39 for eyelid lesions. Check your MAC’s LCD addendum for site-specific requirements. Practices using filler face mapping documentation tools will find that structured lesion location records simplify ICD-10 code selection for facial sites.

Modifiers for CPT Code 11310

Modifier selection for CPT Code 11310 depends on the clinical scenario and the same-day service combination. Incorrect modifier use is an OIG audit risk and a frequent source of claim delays. The following modifiers are applicable based on AAPC guidance and NCCI policy:

Modifier 25 is the most commonly misused. It requires that the E&M service represent a separate clinical decision beyond the decision to perform the shaving procedure itself. Documenting “decision to remove lesion” within an E&M note is not sufficient. The E&M must address a separate, distinct condition or complaint.

Practices managing medical spa compliance standards alongside dermatology billing can use structured note templates to keep E&M and procedure documentation clearly separated.

Documentation requirements for billing CPT Code 11310

Incomplete documentation is the leading cause of post-payment audits and recoupment requests for the 11300 series. Every CPT Code 11310 claim must be supported by a procedure note that captures all of the following. Using digital procedure documentation forms with pre-built dermatology fields reduces the risk of missing a required element at submission time.

• Lesion location: specific anatomical site (right ear, left lower eyelid, vermilion border of lip, etc.), not just “face”
• Measured diameter: the lesion diameter in centimeters as measured at time of procedure. This determines which code in the 11310-11313 series to use
• Clinical indication: the symptom, functional impairment, or clinical concern that establishes medical necessity
• Technique description: confirmation that shaving (sharp removal without full-thickness incision) was the method used
• Pathology disposition: whether the lesion was sent for pathological examination, and if not, the documented clinical rationale
• Provider credentials: the rendering provider’s name, NPI, and specialty

Practices using skin assessment documentation tools that capture lesion measurements in structured fields, rather than free text, are better positioned to pass payer audits. A note that says “small lesion removed from face” will not survive scrutiny. The measured diameter and exact location must be present.

Common billing errors and denial reasons for CPT Code 11310

Denials for CPT Code 11310 cluster around a predictable set of errors. Understanding the pattern is the first step toward reducing rework. The AAPC code reference and your MAC’s LCD addendum are the primary sources for staying current on payer-specific coding requirements.

Practices that implement automated billing workflows with pre-submission claim checks catch most of these errors before the claim leaves the system.

• Wrong site code: billing 11310 for a lesion on the scalp or neck (those fall under 11305) is a common miscoding that generates a code-mismatch denial
• Size threshold mismatch: billing 11310 when the documented diameter is 0.6 cm or greater, instead of 11311 or higher
• Missing ICD-10 pairing: submitting without a supporting diagnosis code, or using a cosmetic-only ICD-10 that does not meet LCD medical necessity criteria
• Modifier 25 without a separate E&M note: bundling a minor E&M discussion into the procedure note rather than documenting a distinct encounter
• Unbundling violations: separately billing a shaving code and a related service (such as pathology collection) that NCCI edits bundle together. Check current NCCI tables before submitting multiple codes on the same claim
• Missing lesion diameter in the note: the procedure note references lesion size generally (“small” or “0.5 cm or less”) without a recorded measurement. Auditors require a specific number

Bundling and NCCI edits for CPT 11310

The National Correct Coding Initiative (NCCI) tables are updated quarterly. NCCI edits that commonly affect the 11310 series include bundling with certain pathology specimen collection codes when the specimen is obtained during the same shaving procedure.

When a modifier (typically 59 or XS) is appropriate to override a bundling edit, the documentation must clearly establish that the services were distinct and separately identifiable. Review practice management software features that integrate NCCI edit checking to catch bundling conflicts before submission.

How CPT Code 11310 differs from excision codes (11440, 11402)

The most consequential coding decision in this category is choosing between shaving and excision. They are not interchangeable. The technique performed determines the code, not the provider’s preference for reimbursement. Upcoding a shaving procedure to an excision code is a compliance violation.

The operative note must specify the technique used. If the note states “excised” but the procedure code billed is 11310, a payer audit will flag the discrepancy. Conversely, if the technique was genuinely shaving, with no full-thickness incision and no closure required, billing an excision code overstates the complexity.

Malignant lesion excisions on the face fall under an entirely different code family. CPT 11644 should never be confused with the benign-lesion codes covered in this comparison. When an excision requires closure, the repair itself is billed separately under CPT 12034.

Coders reviewing procedure notes at skin clinic software platforms should verify technique language against the submitted code before each claim is finalized.

How Pabau supports CPT Code 11310 billing workflows

Coding references define CPT Code 11310 but stop short of preventing the documentation errors that cause denials. Pabau connects the clinical encounter directly to the billing submission, catching those errors before they reach a claim.

Pabau’s claims management software supports dermatology and skin practice teams with features that reduce denial rates for CPT Code 11310 and the broader 11300 series:

• Procedure note templates: customizable templates that include mandatory fields for lesion site, measured diameter, clinical indication, and pathology referral. Every required element for 11310 documentation is prompted at the point of care
• Code suggestion and validation: automated checks that flag mismatches between the documented lesion site/size and the selected CPT code before submission
• Modifier reminders: workflow prompts that surface modifier requirements when an E&M service is documented on the same day as a procedure
• NCCI edit pre-screening: bundling checks that identify NCCI conflicts before the claim leaves the system, reducing rework and resubmission cycles

For teams managing high-volume dermatology billing, the combination of structured documentation and pre-submission claim scrubbing is where CPT Code 11310 denial rates meaningfully improve. Reviewing compliance checklists alongside Pabau’s billing tools helps build a consistent documentation standard across your team.

Continue your research

Excising a malignant lesion larger than the shaving codes allow? CPT 11644 is the reference for excision of a malignant facial lesion measuring 3.1 to 4.0 cm.

Billing for the repair after a facial excision? CPT 12034 is the intermediate wound repair code, billed separately from the excision or shaving code itself.

Need a template for mapping filler injection sites? Filler face mapping gives med spas a structured way to record injection sites and volumes for every patient visit.

Conclusion

CPT Code 11310 has a narrow scope, covering only face-site lesions at 0.5 cm or less. Payers enforce both thresholds at claim adjudication. The most preventable denial causes are missing lesion measurements, incorrect site family codes, and undocumented clinical indications. Getting these right at the point of care is far more efficient than managing rework after the fact.

Pabau gives dermatology and skin practice teams structured note templates and pre-submission code checks that catch 11310 documentation errors before claims leave the system. To see how Pabau handles dermatology billing from encounter note to clean claim, book a demo with our team.

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