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N61.20

Billable

Granulomatous mastitis, unspecified breast

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A rare type of breast inflammation characterized by granuloma formation (collections of immune cells) in unspecified breast location. The cause is often unknown.

Coding Tips

  • •Granulomatous mastitis is uncommon and requires histopathological confirmation; ensure biopsy results are documented
  • •Determine and document laterality to use the more specific codes (N61.21, N61.22, or N61.23) when possible

Code Hierarchy

└N61Inflammatory disorders of breast└N61.2Granulomatous mastitis└N61.20Granulomatous mastitis, unspecified breast
└N61.20Granulomatous mastitis, unspecified breast

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