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ICD-10-CM 2027

ICD-10 code for chronic dysfunction

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

From the official ICD-10-CM alphabetic index entry “Dysfunction › chronic”. Page updated September 29, 2026.

About coding chronic dysfunction

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

More specific chronic dysfunction codes (official index)

  • coronary microvascular I25.85 — Chronic coronary microvascular dysfunction
  • lung allograft J4A.9 — Chronic lung allograft dysfunction, unspecified
  • mixed J4A.0 — Restrictive allograft syndrome
  • specified NEC J4A.8 — Other chronic lung allograft dysfunction

Common questions about chronic dysfunction ICD-10 codes

What is the ICD-10 code for coronary microvascular chronic dysfunction?

I25.85 — Chronic coronary microvascular dysfunction.

What is the ICD-10 code for lung allograft chronic dysfunction?

J4A.9 — Chronic lung allograft dysfunction, unspecified.