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Dx

ICD-10-CM 2027

ICD-10 code for density

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

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

About coding density

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

More specific density codes (official index)

  • breast R92.30 — Dense breasts, unspecified
  • low R92.30 — Dense breasts, unspecified
  • mammographic
  • extreme R92.34 — Mammographic extreme density of breast
  • fatty tissue R92.31 — Mammographic fatty tissue density of breast
  • fibroglandular R92.32 — Mammographic fibroglandular density of breast
  • heterogeneous R92.33 — Mammographic heterogeneous density of breast
  • increased, bone (disseminated) (generalized) (spotted)
  • lung (nodular) J98.4 — Other disorders of lung

Common questions about density ICD-10 codes

What is the ICD-10 code for breast density?

R92.30 — Dense breasts, unspecified.

What is the ICD-10 code for lung density?

J98.4 — Other disorders of lung.