ICD-10-CM · Chapter 14 · N00–N99
N63.42
Unspecified lump in left breast, subareolar
Diseases of the genitourinary system
Quick facts
- Code
- N63.42
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 14 — Diseases of the genitourinary system
- Category
- N63 — Unspecified lump in breast
- Specificity
- 5 characters
How coders use this code
ICD-10-CM N63.42 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of unspecified lump in left breast, subareolar. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in N63
- N63Unspecified lump in breast
- N63.0Unspecified lump in unspecified breast
- N63.1Unspecified lump in the right breast
- N63.10Unspecified lump in the right breast, unspecified quadrant
- N63.11Unspecified lump in the right breast, upper outer quadrant
- N63.12Unspecified lump in the right breast, upper inner quadrant
- N63.13Unspecified lump in the right breast, lower outer quadrant
- N63.14Unspecified lump in the right breast, lower inner quadrant
- N63.15Unspecified lump in the right breast, overlapping quadrants
- N63.2Unspecified lump in the left breast
- N63.20Unspecified lump in the left breast, unspecified quadrant
- N63.21Unspecified lump in the left breast, upper outer quadrant
- N63.22Unspecified lump in the left breast, upper inner quadrant
- N63.23Unspecified lump in the left breast, lower outer quadrant
- N63.24Unspecified lump in the left breast, lower inner quadrant
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