Q43.2

HCC Category Mapping

What This Code Means

A birth defect affecting how the colon functions normally, such as abnormal muscle contractions or nerve function, without structural malformation.

Coding Tips

• •This code is used when there is functional impairment of the colon without anatomical absence or obstruction
• •Document the specific functional disorder if known to support medical necessity

Clinical Significance

This code captures other congenital functional disorders of the colon that don't fit specific categories like Hirschsprung's disease, representing conditions requiring specialized gastroenterology management. These disorders can significantly impact quality of life and may require complex treatment approaches including dietary modifications and medications.

Documentation Requirements

• ✓Specific type of functional disorder documented
• ✓Evidence of congenital rather than acquired nature
• ✓Functional assessment of colonic motility or nerve function
• ✓Associated symptoms and their severity
• ✓Response to treatments attempted
• ✓Exclusion of Hirschsprung's disease or structural abnormalities
• ✓Any genetic or family history information

Commonly Confused Codes