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Medical Coding and Billing

This guide provides a high-level overview of the most commonly used CPT codes and their context and limitations, alongside insights from Alma’s Insurance Operations team—gleaned from processing tens of thousands of insurance claims with more than a dozen payers.

Last updated: July 2024

Medical Coding and Billing

Starting in 2003, HIPAA (Health Insurance Portability and Accountability Act) introduced medical coding requirements for billing, reimbursement, or reporting documents.

There are two primary categories of codes: CPT codes, which describe the service performed by a healthcare provider, and ICD codes, which describe why the care provided was necessary. Both are required to appear on insurance claims, and proper code usage reduces the likelihood of claims being denied.

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Since 2018, we’ve helped thousands of therapists licensed across the country grow and run their private practice by offering backend tools to facilitate scheduling, billing, and note-taking — making it easy and rewarding to take insurance and gain referrals. Members also have access to ongoing training and CE courses developed in collaboration with clinical advisors like Esther Perel, Lori Gottlieb, and more.

By partnering with major insurance companies like Aetna, Optum, and Cigna, Alma makes it easy and financially rewarding to go in-network. Clinicians at Alma can get credentialed in just 45 days, and our in-house team manages everything from client eligibility checks to claims submissions, so you can focus on what matters most: providing high-quality care to your clients.

I joined Alma to be in a community with a diverse pool of clinicians and to learn and grow alongside them.

Sabrina Sarro, LMSW

The following guide is based on Alma’s interpretation of the American Medical Association’s official CPT and ICD coding and our experience managing claims with private insurance payers. We encourage you to reference the official American Medical Association handbook for further clarification.

The following guide is based on Alma’s interpretation of the American Medical Association’s official CPT and ICD coding and our experience managing claims with private insurance payers. We encourage you to reference the official American Medical Association handbook for further clarification.

With this resource, you'll learn how to:

  • Understand the most commonly used CPT codes

  • Receive helpful insights from Alma’s insurance operations

  • Define the categories of medical codes