ICD-10-CM › N00-N99 › N60-N65 › N codes › N63

N63

Unspecified lump in breast

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

Billable FY2016 to FY2017, and a category header from FY2018.

Submit one of these 5 more specific codes instead:

  • N63.0 Unspecified lump in unspecified breast
  • N63.1 Unspecified lump in the right breast (also a header)
  • N63.2 Unspecified lump in the left breast (also a header)
  • N63.3 Unspecified lump in axillary tail (also a header)
  • N63.4 Unspecified lump in breast, subareolar (also a header)

Use instead:

  • N63.10 Unspecified lump in the right breast, unspecified quadrant stated for FY2017
  • N63.11 Unspecified lump in the right breast, upper outer quadrant stated for FY2017
  • N63.12 Unspecified lump in the right breast, upper inner quadrant stated for FY2017
  • N63.13 Unspecified lump in the right breast, lower outer quadrant stated for FY2017
  • N63.14 Unspecified lump in the right breast, lower inner quadrant stated for FY2017
  • N63.20 Unspecified lump in the left breast, unspecified quadrant stated for FY2017
  • N63.21 Unspecified lump in the left breast, upper outer quadrant stated for FY2017
  • N63.22 Unspecified lump in the left breast, upper inner quadrant stated for FY2017
  • N63.23 Unspecified lump in the left breast, lower outer quadrant stated for FY2017
  • N63.24 Unspecified lump in the left breast, lower inner quadrant stated for FY2017
  • N63.31 Unspecified lump in axillary tail of the right breast stated for FY2017
  • N63.32 Unspecified lump in axillary tail of the left breast stated for FY2017
  • N63.41 Unspecified lump in right breast, subareolar stated for FY2017
  • N63.42 Unspecified lump in left breast, subareolar stated for FY2017

What has happened to this code

Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2007 Added to the draft code set draft Unspecified lump in breast
  2. FY2018 Stopped being billable

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

This code

Also known as

  • Nodule(s) NOS in breast

Inherited from the N60-N65 section Disorders of breast (N60-N65)

Excludes1 - never coded here

  • disorders of breast associated with childbirth (O91-O92)