Stage 2 necrotizing enterocolitis

This code represents a severe gastrointestinal condition primarily affecting premature infants, characterized by inflammation and necrosis of the bowel wall. Stage 2 indicates moderate disease, often presenting with pneumatosis intestinalis, mild metabolic acidosis, and thrombocytopenia. It signifies a progression beyond initial symptoms but without full-blown peritonitis or perforation.

Use this code when documentation explicitly states a diagnosis of necrotizing enterocolitis (NEC) and specifies Stage 2, typically based on modified Bell's staging criteria. This stage is often confirmed by radiographic findings such as pneumatosis intestinalis, along with clinical signs like abdominal distension, bloody stools, and systemic symptoms.

• Ensure the medical record clearly indicates "Stage 2" NEC; avoid using this code for unspecified or other stages.
• Review imaging reports (e.g., abdominal X-rays) for findings consistent with Stage 2, such as pneumatosis intestinalis.
• Consider sequencing this code as the principal diagnosis when it is the primary reason for admission or encounter.