Results 1 to 5 of 5


  1. Default 83912
    Medical Coding Books
    In our lab we are doing mutation studies for MTHFR677 AND MTHFR1298 by pcr. We code 83890 molecular diagnostics-molecular isolation or extraction, 83900 amplification target-multiplex first two nucleic acid seq., 83892 x2 enzymatic digestion, 83896 x4 nucleic acid probe, 83914 mutation identification by enzymatic ligation or primer extension, single segment, each segment and 83912 interpretation and report. The question I have is that the Lab Director is doing an interpretation for each mutation but is writing only one report so should we be billing one unit or two for 83912. Also, about 25% of the time only one mutation test is ordered so in that case it is clear that only one unit should be billed. It is when both mutation tests are ordered that it becomes confusing? Any thoughts on what is correct?

  2. Post
    per the new medicare standards 83912 can only be billed once per day, regardless of # of tests or specimens performed

  3. Default
    I have been coding as one 83912 if there are 2 test on the same target, but if there are two different targets, then I bill for 2 units of 83912. What does everyone else think??

    for example I would bill 2 units of 83912 on this because test were done on specimen one (part 1) and specimen two (part 2):

    Molecular Anatomic Pathology Testing:
    Part 1:
    A. Mutations in BRAF, NRAS61, HRAS61, KRAS12/13, and RET/PTC1,
    RET/PTC3 and PAX8/PPARg rearrangements NOT IDENTIFIED.

    Part 2:
    A. Mutations in BRAF, NRAS61, HRAS61, KRAS12/13, and RET/PTC1,
    RET/PTC3 and PAX8/PPARg rearrangements NOT IDENTIFIED.


  4. #4
    I bill two units of 83912 only when two different tests are being interpreted: ie two different 'panels' for individual mutations. A panel for two mutations in the same test (EGFR/KRAS) would only generate one interp charge. Doing EGFR and then later a KRAS based on those results would generate two interp charges.

    The Part 1, Part 2 example is probably okay if the tests were done on two different tumors but it looks like duplicate testing to me without any other information.

    Medicare does allow only one unit per day regardless of how many possible mutations are evaluated.

  5. #5
    what dx do you use

Similar Threads

  1. Deleted CPT 83890-83912
    By cindyk in forum Pathology & Clinical Laboratory
    Replies: 1
    Last Post: 03-27-2013, 12:27 PM
  2. coding help for genetic testing/83912
    By sgormsen in forum Anesthesia
    Replies: 0
    Last Post: 01-15-2013, 12:23 PM
  3. CPTs 83912, 86334 and 86335
    By Sheila1112 in forum Pathology & Clinical Laboratory
    Replies: 2
    Last Post: 10-02-2010, 08:22 AM
  4. 83912
    By mannlx in forum Pathology & Clinical Laboratory
    Replies: 1
    Last Post: 11-05-2009, 01:13 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Enjoying Our Forums?

AAPC forums are a benefit of membership. Joining AAPC grants you unlimited access, allowing you to post questions and participate with our community of over 150,000 professionals.

Join Now Continue Reading Without Full Access

Already a Member?


Close Message

In addition to full participation on AAPC forums, as a member you will be able to:

  • Access to the largest healthcare job database in the world.
  • Join over 150,000 members of the healthcare network in the world.
  • Be a part of an industry leading organization that drives the business side of healthcare.
  • Save anywhere from 10%-50% with exclusive member discounts on courses, books, study materials, and conferences.
  • Access to discounts at hundreds of restaurants, travel destinations, retail stores, and service providers. AAPC members also have opportunities to save on heath, life, and liability insurance.
  • Become a member of a local chapter and attend regular meetings.