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Denial Code 08

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Definition:

The procedure code is inconsistent with the provider's type, specialty, or taxonomy.

What is Denial Code 08?

Denial Code 08 means the procedure billed does not match the type or specialty of the provider who performed the service.

Insurance companies check the provider's specialty, taxonomy, and enrollment information when processing claims. If the provider is not eligible to perform or bill the procedure under the payer's rules, the claim may be denied.

Example 1#
Scenario:

A Family Nurse Practitioner (FNP) working at an urgent care clinic evaluates an established patient for acute bronchitis and provides a nebulizer treatment. The clinic submits CPT 99214 and CPT 94640 to Aetna Commercial with default taxonomy "261QP2000X".

Aetna pays CPT 99214 but denies CPT 94640 with denial Code 8, and remark code N288.

Remark Code N288: "Missing/incomplete/invalid rendering provider taxonomy."

Let's break down the issue:
  • Denial Code 8 means the procedure is inconsistent with the provider type, specialty, or taxonomy information submitted on the claim.
  • The FNP has the appropriate Family Nurse Practitioner taxonomy, 363LF0000X, but the billing system accidentally transmitted a Physical Therapy Clinic taxonomy, 261QP2000X, in the electronic provider information.
  • Because CPT 94640 is a respiratory treatment, the payer's system compared the procedure against the incorrectly reported physical therapy provider taxonomy and triggered a provider-specialty edit.
  • RARC N288 specifically tells us that the rendering provider taxonomy is missing, incomplete, or invalid.
  • Remember that Box 24J of the CMS-1500 contains the rendering provider NPI. Taxonomy information is normally transmitted through the appropriate electronic provider taxonomy segment or payer-required secondary provider fields.
Resolution:
Verify the FNP's correct taxonomy in NPPES and the payer's provider file. Correct the rendering provider profile in the billing system so taxonomy 363LF0000X is transmitted correctly. If Aetna's own provider file is also incorrect, request a provider-data update first. Once corrected, submit the appropriate corrected/replacement claim for CPT 94640.
Example 2#
Scenario:

A chiropractor evaluates an established Medicare patient for back pain and performs chiropractic manipulation. In addition to the covered chiropractic manipulation service, the chiropractor bills CPT 99213 as a separate office visit to Original Medicare Part B.

Medicare processes the chiropractic manipulation according to its coverage rules but denies CPT 99213 with denial Code 8, and remark code N130.

Remark Code N130: "Consult plan benefit documents/guidelines for information about restrictions for this service."

Let's break down the issue:
  • Denial Code 8 tells us that the billed procedure is not payable when performed or billed by this provider type under the payer's rules.
  • Medicare coverage for chiropractic services is very limited. Medicare generally pays chiropractors only for manual manipulation of the spine to correct a subluxation when all coverage requirements are met.
  • The covered chiropractic manipulation codes are generally 98940, 98941, and 98942.
  • A separately billed office E/M service such as CPT 99213 is not payable to a chiropractor simply because the chiropractor performed an examination before treatment.
  • This is not a diagnosis problem or modifier problem. The problem is the relationship between the procedure code and the Medicare-recognized provider type.
Resolution:
Do not repeatedly resubmit CPT 99213 under the chiropractor's NPI. Review the services actually performed and bill only covered chiropractic manipulation services when Medicare requirements are met. If a separate physician or eligible non-physician practitioner actually performed a medically necessary E/M service, that practitioner must report the service under their own appropriate billing information. In this case, ask provider approval to adjust this 99213 CPT. It is not payable.
Example 3#
Scenario:

A Certified Registered Nurse Anesthetist (CRNA) provides anesthesia for emergency abdominal surgery and submits an anesthesia claim to a Medicaid Managed Care Organization. The CRNA has a valid NPI and current CRNA license.

However, the state Medicaid provider file still identifies the practitioner under a General Practice Registered Nurse taxonomy, 163WG0000X, rather than the CRNA taxonomy, 367500000X.

The Medicaid MCO denies the anesthesia claim with denial Code 8, and remark code N521.

Remark Code N521: "Mismatch between the submitted provider information and the provider information stored in our system."

Let's break down the issue:
  • The CRNA's NPI itself may be completely valid.
  • The problem is that the payer's provider master file identifies the practitioner under the wrong provider classification.
  • 367500000X identifies a Certified Registered Nurse Anesthetist, while 163WG0000X identifies a General Practice Registered Nurse.
  • When the MCO compares an anesthesia CPT code against a provider record showing only a general RN classification, the service can fail the provider-type edit and generate Denial Code 8.
  • Updating NPPES alone does not automatically guarantee that the state Medicaid system and Medicaid MCO provider files have also been updated.
  • If independent CRNA billing is permitted, the correct anesthesia modifier must also be reported according to the payer's rules. For example, QZ means CRNA service without physician medical direction under Medicare rules.
Resolution:
Verify the CRNA's NPPES taxonomy, state license, Medicaid enrollment, and MCO provider record. Submit the required provider-file correction so the CRNA taxonomy 367500000X is correctly associated with the provider and billing entity. After the payer confirms the corrected provider record and effective date, request claim reprocessing or submit the required corrected claim/appeal.

Why Does Denial Code 08 Occur?

  1. The provider's specialty does not match the procedure billed.
  2. The wrong provider taxonomy code was submitted.
  3. The wrong rendering provider was selected on the claim.
  4. The provider is enrolled with the payer under a different specialty.
  5. The payer allows the procedure only for certain provider types or specialties.
  6. The payer's provider enrollment information is outdated or incorrect.

How to Avoid / Ways to Mitigate Denial Code 08?

  1. Verify the Rendering Provider: Make sure the correct provider who performed the service is reported on the claim.
  2. Check the Taxonomy Code: Confirm that the provider's taxonomy correctly represents their specialty.
  3. Verify Payer Enrollment: Make sure the provider is properly enrolled and credentialed with the payer for the service being billed.
  4. Check Procedure Restrictions: Review payer rules to determine whether the procedure can only be performed or billed by a specific provider type.
  5. Keep Provider Records Updated: Update specialty, taxonomy, location, and enrollment information whenever provider information changes.
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