How to appeal an EMG / Nerve Conduction Studies denial
EMG/NCS denials are driven by the NCS unit-count edits and same-day bundling, payers cap the number of nerve-conduction studies by CPT tier and deny EMG-plus-NCS combinations that don't match their edits.
Common code: CPT 95886/95885 (EMG), 95907-95913 (nerve conduction studies)Why it gets denied
- The number of NCS studies billed doesn't match the correct 95907-95913 tier for the count performed
- EMG and NCS on the same day hit a bundling or unit edit
- The diagnosis doesn't support the study under the payer's policy
- Prior authorization was required for advanced electrodiagnostics and not obtained
What overturns it
- Confirm the NCS code tier matches the exact number of studies documented and rebill the correct single code
- Document the EMG and NCS as the appropriate separate components with the study report
- Tie the diagnosis and symptoms to the electrodiagnostic coverage policy
- Provide any required prior auth linked to the claim
Worth appealing? A full electrodiagnostic study is moderate-to-high dollar and often miscoded on unit tiers, which quietly underpays it. Reconciling the study count against the billed code recovers dollars that look like a paid claim.
Common questions
How do I appeal an EMG / Nerve Conduction Studies denial?
EMG/NCS denials are driven by the NCS unit-count edits and same-day bundling, payers cap the number of nerve-conduction studies by CPT tier and deny EMG-plus-NCS combinations that don't match their edits. To overturn it: confirm the NCS code tier matches the exact number of studies documented and rebill the correct single code; document the EMG and NCS as the appropriate separate components with the study report; tie the diagnosis and symptoms to the electrodiagnostic coverage policy; provide any required prior auth linked to the claim.
Why do EMG / Nerve Conduction Studies claims get denied?
The number of NCS studies billed doesn't match the correct 95907-95913 tier for the count performed; EMG and NCS on the same day hit a bundling or unit edit; The diagnosis doesn't support the study under the payer's policy; Prior authorization was required for advanced electrodiagnostics and not obtained.
Is a EMG / Nerve Conduction Studies denial worth appealing?
A full electrodiagnostic study is moderate-to-high dollar and often miscoded on unit tiers, which quietly underpays it. Reconciling the study count against the billed code recovers dollars that look like a paid claim. You pay 25% only on what's recovered, so there's no cost to working the winnable ones.
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