AAPC - Back to school
Results 1 to 4 of 4

Thread: 88342, multiple units

  1. #1

    Default 88342, multiple units

    AAPC: Back to School
    Can anyone tell me if there are guidelines (and where to find them) on how many times you can charge 88342 on a given date of service? And, should modifier 91 be applied--or what the correct use of the 91 modifier would be? We have a pathology provider listing 88342 x 5, x10, etc. but we (the coders) are not versed in pathology and this seems excessive.

    Any help is appreciated.

    Thank you,
    Alisa, CPC

  2. #2
    Join Date
    Apr 2007
    New Orleans, LA


    That's not an excessive number of immunostains. Each unit indicates an individual stain used to highlight different antibodies in the specimen. You wouldn't bill 88342 x2 if the same stain was performed twice (CK7x2 would only merit one charge), but you would bill x2 if two different stains were performed...say CK7 and CK20. x3 for CK7, CK20, TTF-1, etc. Each stain it's interpretation should be reported.

    The number of stains performed depends on the tumor morphology.

    The code is for "each" so you shouldn't need a modifier. Depending on the payer though, they may require a -76. Some payers want -59 for some reason. This is not a clinical lab test so -91 doesn't apply but some payers might want that too. I haven't come across it though.

  3. #3


    Thank you so much. We were able to go to the report we are sent and find the information you relayed, exactly!

    Much appreciation,
    Alisa, CPC

  4. #4

    Question 86300, ca 15-3

    If anyone knows how many units you can bill with 86300-is it just one; no matter how many markers or can you bill multiple units. Also, do you know where I can find this information. I would appreciate any help on this one.
    Last edited by jjstauffer62; 02-17-2011 at 03:11 PM.

Similar Threads

  1. Denial for multiple units
    By mcamp in forum Pathology & Clinical Laboratory
    Replies: 7
    Last Post: 03-18-2013, 10:56 AM
  2. Multiple E/M units to Medicare
    By Jmeannm in forum E/M
    Replies: 1
    Last Post: 06-26-2012, 02:45 PM
  3. 88307 with multiple units
    By GregPress in forum Pathology & Clinical Laboratory
    Replies: 0
    Last Post: 10-13-2011, 01:09 PM
  4. 88307 with multiple units
    By GregPress in forum Billing/Reimbursement
    Replies: 0
    Last Post: 10-13-2011, 01:08 PM
  5. multiple units for 92507??
    By sdbrown1026 in forum Medical Coding General Discussion
    Replies: 1
    Last Post: 03-02-2011, 12:23 AM

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.