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ICD-10-CM 2027

ICD-10 code for function decrease

Choose a code from the options below based on the documentation.

From the official ICD-10-CM alphabetic index entry “Decrease (d) › function”. Page updated September 29, 2026.

About coding function decrease

The official ICD-10-CM index doesn't give a single default code for function decrease; the code depends on the details below.

More specific function decrease codes (official index)

  • lipase (pancreatic) K90.3 — Pancreatic steatorrhea
  • ovary in hypopituitarism E23.0 — Hypopituitarism
  • parenchyma of pancreas K86.89 — Other specified diseases of pancreas
  • pituitary (gland) (anterior) (lobe) E23.0 — Hypopituitarism
  • posterior (lobe) E23.0 — Hypopituitarism

Common questions about function decrease ICD-10 codes

What is the ICD-10 code for lipase function decrease?

K90.3 — Pancreatic steatorrhea.

What is the ICD-10 code for ovary in hypopituitarism function decrease?

E23.0 — Hypopituitarism.

What is the ICD-10 code for parenchyma of pancreas function decrease?

K86.89 — Other specified diseases of pancreas.

What is the ICD-10 code for pituitary function decrease?

E23.0 — Hypopituitarism.