Z90.12 ICD-10-CM Code: Acquired absence of left breast and nipple
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Inpatient Payment Groups (MS-DRG)
MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0 (FY2026), Appendix B.
- MS-DRG 951 — OTHER FACTORS INFLUENCING HEALTH STATUS (MDC 23)
A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.
Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.
Official Registry Overview & Definition
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for Z90.12 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- postprocedural or post-traumatic loss of body part NEC
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- congenital absence - see Alphabetical Index
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- postprocedural absence of endocrine glands (E89.-)
Code Also
Additional codes that may be required to fully describe the encounter.
- any follow-up examination (Z08-Z09)
Nearest Codes in This Family
Official ICD-10-CM classifications closest to Z90.12 in its code family, with their registry titles.
- Z90.02 — Acquired absence of larynx
- Z90.09 — Acquired absence of other part of head and neck
- Z90.1 — Acquired absence of breast and nipple
- Z90.10 — Acquired absence of unspecified breast and nipple
- Z90.11 — Acquired absence of right breast and nipple
- Z90.13 — Acquired absence of bilateral breasts and nipples
- Z90.2 — Acquired absence of lung [part of]
- Z90.3 — Acquired absence of stomach [part of]
- Z90.4 — Acquired absence of other specified parts of digestive tract
- Z90.41 — Acquired absence of pancreas