O90.6 Postpartum mood disturbance

Billable ICD-10-CM code, FY2026.

Applicable to

• Postpartum blues
• Postpartum dysphoria
• Postpartum sadness

Excludes1 (never code together)

• postpartum depression (F53.0)
• puerperal psychosis (F53.1)

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 648.42 Mental disorders of mother, delivered, with mention of postpartum complication (approximate)
• 648.44 Mental disorders of mother, 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 O90.6

Back-references to O90.6

• Type 1 Excludes: F53 Mental and behavioral disorders associated with the puerperium, not elsewhere classified ("postpartum dysphoria (O90.6)")
• Type 2 Excludes: O99.34 Other mental disorders complicating pregnancy, childbirth, and the puerperium ("postpartum mood disturbance (O90.6)")

Diagnosis Index entries for O90.6

• Blues, postpartal
• Blues, postpartal › baby
• Dysphoria › postpartal
• Puerperal, puerperium (complicated by, complications) › mood disturbance
• Sadness, postpartal

Nearby codes

• O90.3 Peripartum cardiomyopathy
• O90.4 Postpartum acute kidney failure
• O90.41 Hepatorenal syndrome following labor and delivery
• O90.49 Other postpartum acute kidney failure
• O90.5 Postpartum thyroiditis
• O90.6 Postpartum mood disturbance (this code)
• O90.8 Other complications of the puerperium, not elsewhere classified
• O90.81 Anemia of the puerperium
• O90.89 Other complications of the puerperium, not elsewhere classified
• O90.9 Complication of the puerperium, unspecified