P09.4 ICD-10-CM Code: Abnormal findings on neonatal screening for cystic fibrosis

P09.4 is the ICD-10-CM diagnosis code for abnormal findings on neonatal screening for cystic fibrosis. Abnormal newborn screening results indicating the baby may have cystic fibrosis, a genetic disorder affecting the lungs and digestive system. P09.4 sits in the ICD-10-CM chapter for certain conditions originating in the perinatal period (p00-p96), within the section covering abnormal findings on neonatal screening (p09).

P09.4 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.

Abnormal immunoreactive trypsinogen (IRT) levels on newborn screening warrant this code; confirm with sweat chloride testing.