ICD-10-CM 2027
ICD-10 code for retention milk
From the official ICD-10-CM alphabetic index entry “Milk › retention”. Page updated September 29, 2026.
About coding retention milk
The ICD-10-CM code for retention milk is O92.79 (Other disorders of lactation).
Within O92.7, choose O92.79 (Other disorders of lactation) only when documentation doesn't support a more specific option: unspecified disorders of lactation (O92.70).
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 retention milk ICD-10 codes
What is the ICD-10 code for retention milk?
- O92.79 — Other disorders of lactation.
Is O92.79 billable?
- Yes. O92.79 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can O92.79 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict O92.79 as a principal diagnosis.
Is O92.79 a CC or MCC?
- No. O92.79 is neither a CC nor an MCC under MS-DRG v44.0.