08/18/2025
Medical billing and coding is the process of translating healthcare services into standardized codes and submitting those codes to insurance companies for reimbursement. It's a crucial part of the healthcare revenue cycle, ensuring that providers are paid accurately and promptly for the care they deliver.
Medical Coding
Medical coding involves reviewing clinical documentation (like doctor’s notes, lab results, and procedures) and converting it into standardized codes. These codes are used to describe diagnoses, treatments, and procedures.
Common coding systems include:
ICD-10-CM – for diagnoses
CPT (Current Procedural Terminology) – for medical procedures
HCPCS – for Medicare/Medicaid and supplies/services not covered by CPT
Example:
A patient treated for a broken arm might be coded as:
ICD-10-CM: S42.001A – Fracture of unspecified part of right clavicle, initial encounter
CPT: 24500 – Closed treatment of humeral shaft fracture
🔹 Medical Billing
Medical billing uses those codes to create insurance claims. The biller ensures the claims are accurate, complete, and compliant with regulations before submitting them to insurance providers (like Medicare, Medicaid, or private insurers).
The process includes:
Verifying patient insurance
Creating and submitting claims
Tracking claim status
Resolving denials or rejections
Sending invoices to patients when necessary
🔹 Why It Matters
Medical billing and coding professionals are essential to:
Ensuring healthcare providers are paid
Preventing insurance fraud
Maintaining patient record accuracy
Supporting public health data and analytics
