F53.1
BillablePuerperal psychosis
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is F53.1 an HCC code?
Yes. F53.1 maps to Delusional and Other Specified Psychotic Disorders under the CMS-HCC V28 risk adjustment model (and Reactive and Unspecified Psychosis under V24).
HCC Category Mapping
RAF weights shown are the community, non-dual, aged base weights from the CMS risk adjustment model file. Actual per-patient RAF contribution depends on member segment, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains in use during the transition and for historical data.
MEAT Criteria for F53.1
For F53.1 to count as a valid HCC diagnosis in a given encounter, the provider's documentation must show MEAT: Monitor, Evaluate, Assess, or Treat. A diagnosis from a prior year does not carry forward automatically — it has to be re-documented and supported each calendar year.
- MMonitor: signs, symptoms, disease progression, or lab trending documented in the note
- EEvaluate: test results, medication response, or physical findings reviewed by the provider
- AAssess: explicit mention in the assessment or plan with acknowledgment of status
- TTreat: medication, referral, procedure, therapy, or counseling tied to the diagnosis
Only one of M/E/A/T is required to support the code, but the documentation must be specific enough to show that the provider actually addressed F53.1 during that encounter — not just copy-forwarded from a problem list.
What This Code Means
F53.1 is the ICD-10-CM diagnosis code for puerperal psychosis. A severe mental health condition occurring after childbirth characterized by psychotic symptoms such as hallucinations, delusions, or loss of contact with reality. This is a psychiatric emergency requiring immediate treatment. F53.1 sits in the ICD-10-CM chapter for mental, behavioral and neurodevelopmental disorders (f01-f99), within the section covering behavioral syndromes associated with physiological disturbances and physical factors (f50-f59).
Under the CMS-HCC V28 risk adjustment model, F53.1 maps to Delusional and Other Specified Psychotic Disorders (HCC 152) with a community, non-dual, aged base RAF weight of 0.546. Under the older CMS-HCC V24 model, F53.1 maps to Reactive and Unspecified Psychosis (HCC 58) with a community, non-dual, aged base RAF weight of 0.508. V28 is the CMS-HCC risk adjustment model that reached 100% phase-in for payment year 2026, replacing V24 which was used during the PY2024–PY2025 transition.
This is a serious condition requiring urgent psychiatric intervention; ensure documentation clearly links psychotic symptoms to the postpartum period. Because F53.1 maps to a payment HCC, the provider's documentation must satisfy MEAT criteria (Monitor, Evaluate, Assess, or Treat) for the encounter to count toward the patient's Medicare Advantage risk adjustment score. When documentation is ambiguous, coders should issue a provider query rather than assume the highest-specificity variant.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for F53.1 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •This is a serious condition requiring urgent psychiatric intervention; ensure documentation clearly links psychotic symptoms to the postpartum period
- •Code any associated psychotic features separately if they are documented in detail
Clinical Significance
Puerperal psychosis is a psychiatric emergency occurring in approximately 1-2 per 1,000 deliveries, typically within the first two weeks postpartum. It presents with rapid onset of psychotic symptoms including delusions, hallucinations, disorganized behavior, and severe mood disturbance. This condition carries significant risk of infanticide and maternal suicide, requiring immediate hospitalization. It maps to multiple HCC categories reflecting its severity.
Documentation Requirements
- ✓Documentation of psychotic symptoms (delusions, hallucinations, disorganized thinking/behavior) with onset in the postpartum period
- ✓Temporal relationship to recent delivery (typically within first 2-4 weeks postpartum)
- ✓Assessment of danger to self and infant including specific safety evaluation
- ✓Differentiation from postpartum depression with psychotic features vs. primary psychotic episode
- ✓Hospitalization or intensive outpatient treatment documentation