O92.79 Other disorders of lactation

Billable ICD-10-CM code, FY2026.

Applicable to

• Puerperal galactocele

MS-DRG index

Defines the logic of DRG(s) 769 in MDC 14.

Approximate ICD-9-CM (GEMs)

• 676.82 Other disorders of lactation, delivered, with mention of postpartum complication (approximate)
• 676.84 Other disorders of lactation, postpartum condition or complication (approximate)

Medicare Code Edits (MCE v43.1 (April 2026))

• Maternity diagnoses (age 9 through 64): Age conflict edit. These diagnoses are clinically expected only in patients age 9 through 64.

Code annotations containing back-references to O92.79

Back-references to O92

• Type 1 Excludes: Z39.1 Encounter for care and examination of lactating mother ("disorders of lactation (O92.-)")

Diagnosis Index entries for O92.79

• Caked breast (puerperal, postpartum)
• Disorder (of) › breast › associated with › lactation › specified NEC
• Disorder (of) › breast › lactation disorder NEC
• Disorder (of) › lactation NEC
• Engorgement › breast › puerperal, postpartum
• Galactocele (breast) › puerperal, postpartum
• Lactation, lactating (breast) (puerperal, postpartum) › disorder NEC
• Milk › retention
• Retention › milk (puerperal, postpartum)

Nearby codes

• O92.4 Hypogalactia
• O92.5 Suppressed lactation
• O92.6 Galactorrhea
• O92.7 Other and unspecified disorders of lactation
• O92.70 Unspecified disorders of lactation
• O92.79 Other disorders of lactation (this code)