ICD-10-CM > R00-R99 > R50-R69 > R63 R63 Symptoms and signs concerning food and fluid intake Non-Billable/Non-Specific Type 1 Excludes bulimia NOS (F50.2-) Codes R63.0AnorexiaR63.1PolydipsiaR63.2PolyphagiaR63.3Feeding difficultiesR63.30Feeding difficulties, unspecifiedR63.31Pediatric feeding disorder, acuteR63.32Pediatric feeding disorder, chronicR63.39Other feeding difficultiesR63.4Abnormal weight lossR63.5Abnormal weight gainR63.6UnderweightR63.8Other symptoms and signs concerning food and fluid intake