The transition from ICD-9 codes to ICD-10 codes presents a huge challenge for medical billers and also affects health care delivery system and physicians’ revenues. The staggering number of additional codes makes the learning process complex. Moreover, the scope for error increases which is exacerbated by a harder denial management process. Insurers have a distinct opportunity to target the increased volume of ICD-10 codes for finding ample mistakes to postpone payment.