N63.12 is the authoritative medical code for Unspecified lump in the right breast, upper inner quadrant. This classification is used in medical billing and clinical recording to specify the clinical criteria for unspecified lump in the right breast, upper inner quadrant (ICD-10-CM N63.12), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Unspecified lump in the right breast, upper inner quadrant is a billable ICD-10-CM diagnosis code N63.12. Excludes1 (not coded here): disorders of breast associated with childbirth O91-O92.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for N63.12 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- disorders of breast associated with childbirth O91-O92
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with N63.12?
Per Excludes1 instructions, N63.12 must not be reported with: disorders of breast associated with childbirth (O91-O92).
Codes in This Family (21)
Official ICD-10-CM classifications in the same code family as N63.12, with their registry titles.
- N63 — Unspecified lump in breast
- N63.0 — Unspecified lump in unspecified breast
- N63.1 — Unspecified lump in the right breast
- N63.10 — Unspecified lump in the right breast, unspecified quadrant
- N63.11 — Unspecified lump in the right breast, upper outer quadrant
- N63.13 — Unspecified lump in the right breast, lower outer quadrant
- N63.14 — Unspecified lump in the right breast, lower inner quadrant
- N63.15 — Unspecified lump in the right breast, overlapping quadrants
- N63.2 — Unspecified lump in the left breast
- N63.20 — Unspecified lump in the left breast, unspecified quadrant
- N63.21 — Unspecified lump in the left breast, upper outer quadrant
- N63.22 — Unspecified lump in the left breast, upper inner quadrant
- N63.23 — Unspecified lump in the left breast, lower outer quadrant
- N63.24 — Unspecified lump in the left breast, lower inner quadrant
- N63.25 — Unspecified lump in the left breast, overlapping quadrants
- N63.3 — Unspecified lump in axillary tail
- N63.31 — Unspecified lump in axillary tail of the right breast
- N63.32 — Unspecified lump in axillary tail of the left breast
- N63.4 — Unspecified lump in breast, subareolar
- N63.41 — Unspecified lump in right breast, subareolar
- N63.42 — Unspecified lump in left breast, subareolar
Indexed Clinical Terms (1)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Lump, breast, right, upper inner quadrant
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: