Introduction of the electronic health records (EHRs) and the Affordable Care Act has brought an immense change in these last few years. Medical billing and coding plays a major role in making sure that the American healthcare systems works perfectly and smoothly.
Medical billers and coders use International Classification of Diseases (ICD) when processing the claims and billing insurances. The number of codes will change from 13,600 to approximately 70,000 codes as the system switches from ICD-9 to ICD-10.
It seems like a huge number but anyone who has been trained on medical billing and coding need not to be afraid. This is all happening due to the change that all healthcare providers have to eventually adopt the electronic health records.

EHRs, what are they?
Electronic health records have replaced the paper based patient health records. EHRs help reduce errors in patient care and cut the costs of the healthcare industry. Coders and medical billers use EHR systems to receive financial reimbursements from the insurance companies. EHRs can be used to generate bills for the patients as they contain all the details regarding the patients from procedures to tests.

Do I have to learn ICD-10?
The last date for ICD-10 compliance is October 1, 2014 and all those healthcare providers who are covered by HIPAA are required to successfully complete the transactions using the ICD-10 codes latest by the date mentioned above. This also includes those healthcare providers who have chosen not to switch to an EHR system.

How ICD-9 differs from ICD-10?
There are various differences between the ICD-9 and ICD-10 codes. The structures of ICD-9 and ICD-10 are completely different. The ICD-9 code uses three to five digits whereas ICD-10 codes uses combination of three to seven consisting of letters and numbers. The new codes are separated into categories and provide more accurate information for treatment of patients.


http://www.curemd.com/icd10/index.asp