HCSPCS level I and Level II codes & relation to CPT.
In general terms — with some exceptions — medical coders use the three code sets when submitting medical claims to report the following: CPT ® codes: What the provider did HCPCS codes: What the provider used ICD-10-CM: Why the provider 'did' and 'used'. An example can make it more clear. If a urologist diagnoses a patient with bladder cancer and performs a bladder instillation of 1 mg of Bacillus Calmette-Guerin (BCG) to treat the tumor, the medical coder might assign: CPT ® codes ( did ): 51720 Bladder instillation of anticarcinogenic agent (including retention time) HCPCS Level II code ( used ): J9030 BCG live intravesical instillation, 1mg ICD-10-CM code ( why ): C67.9 Malignant neoplasm of bladder, unspecified A. HCSPCS level I and II HCPCS Level I: Current Procedural Terminology, Fourth Edition: Procedures and services provided by physicians and other allied healthcare professional...