Inpatient Facility Coding & Compliance Alert

Question: Does the ICD-10-CM code set have new codes for gastrointestinal tumors? If so, which MS-DRG groups do they fall into?

Colorado Subscriber

Answer: Yes, the ICD-10-CM Code Set, applicable Oct.1, 2016, onwards, does offer seven new codes for gastrointestinal stromal tumor for different sites. Here are the new options:

• C49.A0 (Gastrointestinal stromal tumor, unspecified site) 
• C49.A1 (Gastrointestinal stromal tumor of esophagus)
• C49.A2 (Gastrointestinal stromal tumor of stomach            )
• C49.A3 (Gastrointestinal stromal tumor of small intestine)
• C49.A4 (Gastrointestinal stromal tumor of large intestine)
• C49.A5 (Gastrointestinal stromal tumor of rectum)
• C49.A9 (Gastrointestinal stromal tumor of other sites)

As for the applicable MS-DRG groupings, C49.A2 is applicable for MS-DRGS 374, 375, 376 (Digestive malignancy w CC/MCC). The rest of the C.49.A~ codes fit in to the MS-DRGs 542, 543, 544 (Pathological fractures & musculoskeletal & conn tiss malig w CC/MCC)