Malnutrition is at its most basic level any nutritional imbalance. While it can be overnutrition, such as being overweight, obese, or morbidly obese, providers more commonly equate malnutrition with undernutrition, which is a continuum of inadequate intake, impaired absorption, altered transport, and altered nutrient utilization.
ICD-10-PCS codes consist of seven characters, each of which identifies a unique, specific piece of information. For most of the codes in the Medical and Surgical section, each character represents the same information every time.
Many coders rely on the advice in the American Hospital Association (AHA)'s Coding Clinic to resolve sticky situations with ICD-9-CM coding. However, the AHA will not be transitioning its current guidance to ICD-10-CM. Instead, in January, it began focusing solely on ICD-10-CM questions to help clear up confusion prior to implementation.
Physicians use a lot of shortcuts and abbreviations. Some of them may even make it to the official abbreviation list at a hospital. Some don't. Even if they do, some physicians will use the wrong term.