Skip to main content
The US inpatient procedure coding system, developed by CMS. Required for every procedure on inpatient hospital claims. Over 78,000 seven-character alphanumeric codes, where each character position has a distinct classification axis covering surgical, imaging, and therapeutic procedures. Use alongside ICD-10-CM for diagnosis coding. For outpatient procedures, use CPT instead.

​
Quick start

System identifier: icd10pcs 
curl -X POST "https://api.$environment.corti.app/v2/tools/coding/" \
  -H "Authorization: Bearer <token>" \
  -H "Tenant-Name: <tenant-name>" \
  -H "Content-Type: application/json" \
  -d '{
    "system": ["icd10pcs"],
    "context": [{"type": "text", "text": "Patient underwent laparoscopic appendectomy for acute appendicitis."}]
  }'
API reference →
ICD-10-PCS is for inpatient procedures only. For outpatient procedures and physician services, use CPT.