Health Billing: CCAM Codes and Social Security Reimbursement

Introduction

Health billing constitutes a major issue for all actors in the French healthcare system. Between the Common Classification of Medical Acts (CCAM), conventions with Compulsory Health Insurance (AMO) and Supplementary Health Insurance (AMC), and multiple regulatory constraints, mastery of pricing processes has become essential. Incorrect billing can lead to reimbursement rejections, significant financial losses, or even administrative sanctions from the CPAM. This comprehensive guide addresses public establishments, private clinics and self-employed healthcare professionals wishing to optimise their financial management whilst complying with the legal framework defined by the French Public Health Code.

Understanding CCAM Nomenclature

The CCAM, which came into effect in 2005, replaces the former General Nomenclature of Professional Acts (NGAP) for technical medical acts. It lists over 7,600 codes organised according to a 7-character alphanumeric structure. Each code precisely identifies a medical act, its anatomical location, and its modalities of execution.

CCAM pricing is based on several components: the base rate, modifiers (emergency, night, Sunday), and any additional charges. For example, code HBFA005 corresponds to the extraction of a permanent tooth, priced at 33.44 € in sector 1. Practitioners must ensure exact coding to avoid any overpayment, as the CPAM has the power to carry out a posteriori controls over 3 years, in accordance with article L.133-4 of the French Social Security Code.

Regular updates to the CCAM, under the auspices of the High Health Authority (HAS) and UNCAM, require permanent monitoring. Pricing changes are published in the Official Journal and integrated into approved billing software.

The AMO-AMC System and Conventions

Reimbursement of care in France is based on a dual mechanism. Compulsory Health Insurance (AMO) covers part of the costs according to the conventional rate (70% for a general consultation, 60-100% for technical acts depending on their nature). Supplementary Health Insurance (AMC) acts as a top-up, via mutual societies and health insurance providers.

National conventions signed between UNCAM and professional unions define the applicable rates. Doctors are divided into sector 1 (conventional fees), sector 2 (free fees with overpayments) or non-conventional. Since 2017, OPTAM (Controlled Tariff Practice Option) limits fee overpayments in exchange for social benefits.

Transmission via the SESAM-Vitale standard is mandatory to benefit from dematerialised flows. Generalised third-party payment, provided for by the 2016 healthcare system modernisation law, applies for chronic illnesses, maternity, CMU-C and AME.

Optimisation of the Billing Chain

Efficient billing requires the integration of several tools: approved HDS medical software (Health Data Host), smart card reader, connection to the ADRi teleservice for real-time verification of rights. Hospital establishments use T2A (Activity-Based Pricing) with DRGs (Diagnosis-Related Groups), whilst self-employed professionals rely mainly on CCAM and NGAP.

Management of rejections is a critical area: a rejection rate above 3% generally signals structural malfunctions. Analysis of reasons (error codes R, LR) makes it possible to identify improvement points: outdated rights, obsolete codes, inconsistencies in coding.