E77.9 — Disorder of glycoprotein metabolism, unspecified
ICD-10-CM
Prior Authorization
No Prior Auth Required
Code is covered without prior authorization (high confidence)
Documentation Required
- When routine foot care needs to meet one of the exclusions, include the applicable Q modifier on the claim: Q7 for 1 Class A finding, Q8 for 2 Class B findings, and Q9 for 1 Class B plus 2 Class C findings.
- For all foot-care claims report an appropriate foot/toe location modifier (e.g., LT, RT, TA, T1-T9) to identify laterality and specific toe when applicable.
- If a significant, separately identifiable evaluation and management service is provided on the same day as routine foot care, append modifier -25 to the E/M claim line.
- Total the number of keratotic lesions debrided and select the most appropriate CPT code 11055-11057 based on that total (example: code 11056 for two to four lesions).
Key Coverage Criteria
- Removal of corns and calluses of the feet must be billed using CPT codes 11055-11057 (paring/cutting of benign hyperkeratotic lesion) and the procedure code that most accurately describes the service performed should be reported.
- Foot care services are covered when the beneficiary has a listed systemic condition that justifies coverage per Medicare Benefit Policy Manual Pub.100-02, Ch.15, Section 290.4D.
- For diagnosis codes designated by an asterisk, the patient must be under the active care of an M.D. or D.O., documented as having been seen for the complicating disease within the 6 months prior to service.
- Claims asserting presumptive coverage must include a systemic-condition diagnosis from IOM 100-02 Ch.15 Section 290 Group 1 and a valid billing modifier Q7, Q8, or Q9.
- Mycotic nail debridement is covered when mycotic nails are present in the context of a systemic disease with class findings and the appropriate Q modifier on the claim.
- Mycotic nail debridement is covered without systemic disease if an ambulatory patient has marked limitation of ambulation, pain, or secondary infection from thickened/dystrophic infected toenail plate.
16 Active Policies
A57559 — Billing and Coding: MolDX: Biomarkers in Cardiovascular Risk Assessment
J05
L36523 — MolDX: Biomarkers in Cardiovascular Risk Assessment
J05
A56232 — Billing and Coding: Foot Care
J05
A52996 — Billing and Coding: Routine Foot Care
J12
L35138
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