K59.8

Non-billable

Other specified functional intestinal disorders

K59.8 is the ICD-10-CM code for Other specified functional intestinal disorders. It is a non-billable category code — use a more specific child code such as K59.81 for billing.

Status
Header (non-billable)
Chapter
K00-K95
Parent
K59
Subcodes
2
Edition
FY2026

K00-K95 Diseases of the digestive system

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code K59.8?
K59.8 is the ICD-10-CM code for "Other specified functional intestinal disorders". It falls under K00-K95 Diseases of the digestive system.
Is K59.8 a billable code?
No — K59.8 is a non-billable header code. Use a more specific child code (such as K59.81) for billing.
What are the subcodes of K59.8?
K59.8 has 2 more specific child codes, including K59.81, K59.89.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

Look up another ICD-10 code or condition

Powered by Eleplan

Free ICD-10 lookup is just the start. Eleplan keeps the whole care plan in one place.

Diagnoses, medications, documents, appointments, and the whole care team — organized and always in sync, with Ellie, your AI care assistant, on top of it. Free to start.