F50.00

HCC Category Mapping

What This Code Means

An eating disorder characterized by severe restriction of food intake and an intense fear of gaining weight, but the specific type or severity level is not documented.

Coding Tips

• •This is an unspecified code; attempt to determine if the patient has restricting type or binge eating/purging type before coding
• •If severity level is documented (mild, moderate, severe, extreme, or in remission), use the more specific subcode instead

Clinical Significance

Anorexia nervosa is a life-threatening eating disorder with the highest mortality rate of any psychiatric illness. The unspecified code indicates the provider has diagnosed anorexia nervosa but has not specified the type (restricting vs. binge eating/purging) or severity. This condition requires intensive medical monitoring due to serious cardiac, metabolic, and endocrine complications.

Documentation Requirements

• ✓Documentation of restriction of energy intake leading to significantly low body weight
• ✓Intense fear of gaining weight or persistent behavior interfering with weight gain
• ✓Disturbance in body weight/shape perception or undue influence of body weight on self-evaluation
• ✓Current BMI or weight status relative to expected range
• ✓Medical complications screening (electrolyte abnormalities, cardiac status, bone density)

Commonly Confused Codes