E/M Coding, Documentation, and EMR Tips | Join Webinar & Earn 1 AAPC CEU Register Now Only a Few Days Left!
Radiology Coding Alert

You Be the Coder: D-Dimer Diagnosis

- Published on Sun, Sep 12, 2004
Question: A patient was evaluated for pulmonary embolism, on a CT chest with contrast. What is the diagnosis code for a positive D-dimer exam if there is no physician interpretation?
Wisconsin Subscriber

Answer: Most experts suggest the use of ICD-9 790.99 (Other nonspecific findings on examination of blood; other).
While some coders use 790.92 (Abnormal coagulation profile), a D-dimer test looks for the breakdown of clots, rather than coagulation.
The levels of dextro dimer fragments in the blood can alert the doctor to the presence of venous thromboembolism, which often includes deep venous thrombosis and pulmonary embolus. There is now no official determination on the best code for this job.

Get 14-Day Fully-Functional Free Trial of Physician Coder

Get access to all your specialty alerts and archived articles along with some comprehensive tools including:
  • Code Search for CPT®, HCPCS, ICD-9 and ICD-10
  • CCI Edits Checker
  • Part B Fees, MUEs
  • CPT-ICD-9 CrossRef
  • CPT® ↔ ICD-9 ↔ ICD-10 CM Crosswalk
  • LCD/NCD Lookup
  • CMS 1500 Claims Scrubber
  • NDC ↔ CPT/HCPCS CrossReference
First Name: *
Last Name: *
User Name: *
E-mail: *
Phone: *
Choose Speciality*
Please enter the characters shown in box*