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Home / ICD-10-CM / Chapter 14: Diseases of the genitourinary system (N00-N99) / Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified (N99)

N99.86: Intraoperative and postprocedural complications and disorders of breast

ICD-10-CM code N99.86

New code · FY2027

Not billable: this is a header. Use one of the more specific codes below.

New code, effective October 1, 2026 (FY2027).

Code breakdown

N99.86

N99CategoryIntraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified
8Character 4Other intraoperative and postprocedural complications and disorders of genitourinary system
6Character 5Intraoperative and postprocedural complications and disorders of breast

Coding notes

Excludes2 (from N99)

irradiation cystitis (N30.4-)
postoophorectomy osteoporosis with current pathological fracture (M80.8-)
postoophorectomy osteoporosis without current pathological fracture (M81.8)

Codes under N99.86

N99.860 Intraoperative and postprocedural nipple ischemia
N99.861 Intraoperative and postprocedural nipple necrosis

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All FY2027 ICD-10-CM changes

ICD-10-CM codes and descriptions are from the CMS and NCHS code files. Coverage is from the CMS Medicare Coverage Database billing and coding articles.