Valid for Submission
Z90.10 is a billable diagnosis code used to specify a medical diagnosis of acquired absence of unspecified breast and nipple. The code Z90.10 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code Z90.10 might also be used to specify conditions or terms like absence of breast, acquired absence of breast, acquired total absence of breast, acute pain following mastectomy, chronic postoperative pain , deformity of breast, etc. The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.
Unspecified diagnosis codes like Z90.10 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Absence of breast
- Acquired absence of breast
- Acquired total absence of breast
- Acute pain following mastectomy
- Chronic postoperative pain
- Deformity of breast
- History of mastectomy
- History of prophylactic mastectomy
- Post-mastectomy breast deformity
- Post-mastectomy chronic pain syndrome
- Post-mastectomy pain
- Post-mastectomy pain
Present on Admission (POA)
Convert Z90.10 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code Z90.10 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
Information for Patients
A mastectomy is surgery to remove a breast or part of a breast. It is usually done to treat breast cancer. Types of breast surgery include
- Total (simple) mastectomy - removal of breast tissue and nipple
- Modified radical mastectomy - removal of the breast, most of the lymph nodes under the arm, and often the lining over the chest muscles
- Lumpectomy - surgery to remove the tumor and a small amount of normal tissue around it
Which surgery you have depends on the stage of cancer, size of the tumor, size of the breast, and whether the lymph nodes are involved. Many women have breast reconstruction to rebuild the breast after a mastectomy.
Sometimes mastectomy is done to prevent breast cancer. Only high-risk patients have this type of surgery.
NIH: National Cancer Institute
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