ICD-10-CM 2027
ICD-10 code for malignancy puerperal
Malignant neoplasm complicating the puerperium
From the official ICD-10-CM alphabetic index entry “Puerperal, puerperium (complicated by, complications) › malignancy”. Page updated September 29, 2026.
About coding malignancy puerperal
The ICD-10-CM code for malignancy puerperal is O9A.13 (Malignant neoplasm complicating the puerperium).
Within O9A.1 (malignant neoplasm complicating pregnancy, childbirth and the puerperium), O9A.13 is specifically for malignant neoplasm complicating the puerperium. Related codes cover pregnancy (O9A.11) and childbirth (O9A.12).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 769 (Postpartum and Post Abortion Diagnoses with O.R. Procedures, relative weight 1.6673) and DRG 776 (Postpartum and Post Abortion Diagnoses without O.R. Procedures, relative weight 0.6721), in MDC 14 (Pregnancy, Childbirth and the Puerperium), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about malignancy puerperal ICD-10 codes
What is the ICD-10 code for malignancy puerperal?
- O9A.13 — Malignant neoplasm complicating the puerperium.
Is O9A.13 billable?
- Yes. O9A.13 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can O9A.13 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict O9A.13 as a principal diagnosis.
Is O9A.13 a CC or MCC?
- No. O9A.13 is neither a CC nor an MCC under MS-DRG v44.0.