ICD-10-CM, ICD-10-PCS, CPT and HCPCS: know the difference
A new learner often calls every code an ICD code.
KNOWLEDGE LIBRARY
Start with a question. Build understanding through clear explanations and practical examples.
Understand the difference between medical billing and medical coding. Explore how diagnosis codes, procedure reporting and claims fit together, with introductory lessons on ICD-10-CM and other US code systems. This learning collection explains the workflow without promising a professional coding credential. Always check the applicable code-set version and official guidance before applying a code.
A new learner often calls every code an ICD code.
A code search can help you locate an entry, but finding a familiar phrase is only the beginning.
Conventions are instructions embedded in the classification.
This lesson uses three familiar entries to practice a lookup method.
Code validity, coverage and payment are related but separate.