F53.1 Puerperal psychosis

Billable ICD-10-CM code, FY2026.

Applicable to

• Postpartum psychosis
• Puerperal psychosis, NOS

Applies from F53 Mental and behavioral disorders associated with the puerperium, not elsewhere classified

Excludes1 (never code together)

• mood disorders with psychotic features (F30.2, F31.2, F31.5, F31.64, F32.3, F33.3)
• postpartum dysphoria (O90.6)
• psychosis in schizophrenia, schizotypal, delusional, and other psychotic disorders (F20-F29)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 152 — Psychosis, Except Schizophrenia
• RxHCC V08: HCC 132 — Depression
• ESRD V24: HCC 58

MS-DRG index

Defines the logic of DRG(s) 885 in MDC 19.

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 F53.1

Back-references to F53.1

• Type 1 Excludes: O90.6 Postpartum mood disturbance ("puerperal psychosis (F53.1)")
• Type 2 Excludes: O99.34 Other mental disorders complicating pregnancy, childbirth, and the puerperium ("postnatal psychosis (F53.1)")
• Type 2 Excludes: O99.34 Other mental disorders complicating pregnancy, childbirth, and the puerperium ("puerperal psychosis (F53.1)")

Diagnosis Index entries for F53.1

• Pregnancy (single) (uterine) › complicated by (care of) (management affected by) › psychosis or psychoneurosis (puerperal)
• Psychosis, psychotic › postpartum (NOS)
• Psychosis, psychotic › puerperal (NOS)
• Puerperal, puerperium (complicated by, complications) › psychosis (NOS)

Nearby codes

• F53 Mental and behavioral disorders associated with the puerperium, not elsewhere classified
• F53.0 Postpartum depression
• F53.1 Puerperal psychosis (this code)