Health Information Management

ICD-10-PCS root operations: Map

HIM-HIPAA Insider, March 31, 2014

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Map (third character K) is a very narrowly defined ICD-10-PCS root operation. By definition, Map procedures are used to locate the route of passage of electrical impulses and/or locate functional areas in a body part.

Map only applies to the cardiac conduction mechanism and the central nervous system, so we only have two possible body systems for Map:
  • Central nervous system (00K)
  • Heart and great vessels (02K)
If you look at those tables, you’ll see very few options. The table for the central nervous system offers these body parts:
  • 0, brain
  • 7, cerebral hemisphere
  • 8, basal ganglia
  • 9, thalamus
  • A, hypothalamus
  • B, pons
  • C, cerebellum
  • D, medulla oblongata
For the heart and great vessels, we get only one body part choice: conduction mechanism.
Examples of Map procedures include:
  • 00K83ZZ, percutaneous mapping of basal ganglia
  • 00K00ZZ, intraoperative whole brain mapping via craniotomy
  • 00K74ZZ, mapping of left cerebral hemisphere, percutaneous endoscopic
  • 02K80ZZ, intraoperative cardiac mapping during open heart surgery
This article originally appeared on HCPro’s ICD-10 Trainer blog.

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