ICD-10-CM 2027
ICD-10 code for function increase
Choose a code from the options below based on the documentation.
From the official ICD-10-CM alphabetic index entry “Increase, increased › function”. Page updated September 29, 2026.
About coding function increase
The official ICD-10-CM index doesn't give a single default code for function increase; the code depends on the details below.
More specific function increase codes (official index)
Common questions about function increase ICD-10 codes
What is the ICD-10 code for pituitary function increase?
- E22.9 — Hyperfunction of pituitary gland, unspecified.