Pathology/Lab Coding Alert

Distinguish "from" and "through" dates.

You know you'll need to start using ICD-10 diagnosis codes for services provided on or after Oct. 1, 2013 -- but what about claims for services that begin prior to Oct. 1 and end on or after that date?

Example: The lab begins a 24-hour urine creatinine test, beginning collection at 10 a.m. on Sept. 30, 2013 and completing the procedures at 10 a.m. on Oct. 1, 2013. That means the date of service (DOS) spans the ICD-10 implementation date. Should the lab report ICD-9 codes, ICD-10 codes, or both for the ordering diagnosis for the test?

In an "ICD-10 National Provider Teleconference," CMS' Sarah Shirey-Losso stated that "Some claims will continue to use the discharge date, some will use the 'from' date, and some may be required to be split," but indicated that specific instruction would be forthcoming.

Follow Transmittal 950 Guidance

Providers recently received the promised guidance for different provider types when CMS issued Transmittal 950, which breaks down how each facility and provider should report claims that span the ICD-10 implementation date. Following you'll find some examples of how various entities will report these claims:

Inpatient hospitals: Use the "through" date -- if the hospital's discharge and/or through date occurs on or after Oct. 1, 2013, then you should bill the entire claim with ICD-10 codes.

Providers, Part B hospital services, outpatient hospitals, hospices, and outpatient home health: You'll split the claim, so all ICD-9 codes remain on one claim and all ICD-10 codes remain on the other claim.

Expect return, not denial: If you submit a claim with DOS or dates of discharge/through dates on or after Oct. 1, 2013 using ICD-9 codes, your Medicare contractor should return to provider (RTP) rather than deny the claim. To identify and correct the problem, expect to see the following message:

"For dates of service on or after October 1, 2013, claims may not contain ICD-9 codes. Please re-submit claim with the appropriate ICD-10 code".

To read Transmittal 950, which includes the full list of potential provider types, visit www.cms.gov/transmittals/downloads/R950OTN.pdf.