Table 1.

Codes Used to Identify Claims for Surgery, Radiotherapy, and Chemotherapy

Classification System	Surgery Codes	Radiotherapy Codes	Chemotherapy Codes
ICD-9 diagnosis		V58.0, V66.1, V67.1	V58.1, V66.2, V67.2
ICD-9-CM procedures		92.20–92.29	99.25
HCPCS level I (CPT)	61510, 61516, 61518, 61520, 61521, 61524, 61526, 61530, 61534, 61536, 61544, 61545	77261–77431, 77750–77797, 77499	51720, 96400–96549
HCPCS level II			J9000-J9999 Q0083-Q0085, J0640, J7150, J8530, J6600, J8610, J8999, J8510, J8520, J8521
Revenue center	012, 013, 015, 0124, 0125, 0139, 0159
Diagnosis-related group		409	410, 492

ICD-9 indicates The International Classification of Diseases-Ninth Revision; ICD-9-CM, International Classification of Diseases-Ninth Revision-Clinical Modification; HCPCS, Healthcare Common Procedure Coding System; CPT, Current Procedural Terminology.