P11.0
BillableCerebral edema due to birth injury
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is P11.0 an HCC code?
Yes. P11.0 maps to Cerebral Hemorrhage under the CMS-HCC V28 risk adjustment model.
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 P11.0
For P11.0 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 P11.0 during that encounter — not just copy-forwarded from a problem list.
What This Code Means
P11.0 is the ICD-10-CM diagnosis code for cerebral edema due to birth injury. Swelling of the brain tissue that develops as a result of birth trauma. P11.0 sits in the ICD-10-CM chapter for certain conditions originating in the perinatal period (p00-p96), within the section covering birth trauma (p10-p15).
Under the CMS-HCC V28 risk adjustment model, P11.0 maps to Cerebral Hemorrhage (HCC 248) with a community, non-dual, aged base RAF weight of 0.289. P11.0 was not retained as a payment HCC under the older V24 model, so V28 introduced or recategorized it during the 2024–2026 phase-in. 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.
Document the timing of edema onset and any imaging findings (CT or MRI) that confirm the diagnosis. Because P11.0 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 P11.0 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Document the timing of edema onset and any imaging findings (CT or MRI) that confirm the diagnosis
- •This condition may develop hours to days after birth, so review the clinical timeline carefully
Clinical Significance
Cerebral edema from birth injury represents brain swelling following delivery trauma, which can lead to increased intracranial pressure and neurological complications. This condition requires intensive neonatal monitoring and may indicate severe birth trauma with potential for long-term neurological sequelae.
Documentation Requirements
- ✓Imaging evidence of cerebral swelling or edema
- ✓Documentation of birth trauma as causative factor
- ✓Assessment of intracranial pressure signs and symptoms
- ✓Neurological examination and status documentation
- ✓Evidence of difficult delivery or birth complications
- ✓Monitoring protocols for increased ICP
- ✓Treatment interventions for cerebral edema management
- ✓Exclusion of other causes of neonatal brain swelling
Commonly Confused Codes
- •P91.60 — Hypoxic ischemic encephalopathy (hypoxic vs traumatic edema)
- •G93.1 — Anoxic brain damage (adult condition vs neonatal trauma)
- •P10.2 — Intraventricular hemorrhage due to birth injury (bleeding vs edema)
- •P91.4 — Neonatal cerebral depression (depression vs edema)
- •G94 — Other disorders of brain (non-traumatic brain disorders)