D48.6 — Neoplasm of uncertain behavior of breast
Is D48.6 billable?
No — D48.6 is a non-billable header code. D48.6 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 3 billable codes beneath D48.6.
D48.6 at a glance
| Code | D48.6 |
|---|---|
| Description | Neoplasm of uncertain behavior of breast |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is D48.6 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to D48.6. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Cystosarcoma phyllodes
- Tumor › phyllodes
Excludes1 — never code together
The conditions below can never be reported together with D48.6 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- neoplasm of uncertain behavior of skin of breast (D48.5)
Inclusion terms
Alternative wording in documentation that is classified to D48.6.
- Neoplasm of uncertain behavior of connective tissue of breast
- Cystosarcoma phyllodes
Excludes1 — never code together — inherited from D37-D48
The conditions below can never be reported together with D48.6 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- neoplasms of unspecified behavior (D49.-)
Excludes1 — never code together — inherited from D48
The conditions below can never be reported together with D48.6 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- neurofibromatosis (nonmalignant) (Q85.0-)
What codes fall under D48.6? (3)
How long has D48.6 existed?
D48.6 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with D48.6?
ICD-10-CM declares these codes mutually exclusive with D48.6 — exactly one of each pair can be correct for a given encounter.
Which conditions are coded to D48.6?
What other codes are in the D48 family? (8)
- D48.0Neoplasm of uncertain behavior of bone and articular cartilage
- D48.1Neoplasm of uncertain behavior of connective and other soft tissuenot billable
- D48.2Neoplasm of uncertain behavior of peripheral nerves and autonomic nervous system
- D48.3Neoplasm of uncertain behavior of retroperitoneum
- D48.4Neoplasm of uncertain behavior of peritoneum
- D48.5Neoplasm of uncertain behavior of skin
- D48.7Neoplasm of uncertain behavior of other specified sites
- D48.9Neoplasm of uncertain behavior, unspecified