N64.52 — Nipple discharge
Is N64.52 billable?
Yes — N64.52 is billable for FY2027. N64.52 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. N64.52 may be submitted for encounters from October 1, 2026 through September 30, 2027.
N64.52 at a glance
| Code | N64.52 |
|---|---|
| Description | Nipple discharge |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does N64.52 group to?
N64.52 sits in MDC 09 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 600Non-Malignant Breast Disorders with CC/MCCmedical
- 601Non-Malignant Breast Disorders without CC/MCCmedical
How is N64.52 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to N64.52. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Discharge › breast (from)
- Discharge › nipple (from)
Excludes1 — never code together
The conditions below can never be reported together with N64.52 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- abnormal findings in nipple discharge (R89.-)
Excludes1 — never code together — inherited from N60-N65
The conditions below can never be reported together with N64.52 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- disorders of breast associated with childbirth (O91-O92)
Excludes2 — not included here — inherited from Chapter 14
The conditions below are not part of N64.52, but a patient may have both at the same time. When documentation supports it, N64.52 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Excludes2 — not included here — inherited from N64
The conditions below are not part of N64.52, but a patient may have both at the same time. When documentation supports it, N64.52 and the excluded code may both be reported.
- mechanical complication of breast prosthesis and implant (T85.4-)
Excludes2 — not included here — inherited from N64.5
The conditions below are not part of N64.52, but a patient may have both at the same time. When documentation supports it, N64.52 and the excluded code may both be reported.
- abnormal findings on diagnostic imaging of breast (R92.-)
How long has N64.52 existed?
N64.52 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.