Newborn Jaundice & Kernicterus Brain Damage

When a newborn’s jaundice goes undetected or untreated, the consequences can be permanent and devastating. Kernicterus, brain damage caused by extremely elevated bilirubin levels, is entirely preventable when hospital staff follow established screening and treatment protocols. If your child suffered kernicterus or its lasting effects after a bilirubin level was missed or ignored, a kernicterus malpractice lawsuit may help your family understand what went wrong and pursue accountability for the harm caused.

This article provides general legal information; consult a licensed Illinois attorney for advice specific to your situation.

What Is Jaundice, and Why Does It Become Dangerous?

Newborn jaundice, the yellow tint to a baby’s skin and eyes, is extremely common. It occurs because newborns produce bilirubin, a byproduct of the normal breakdown of red blood cells, faster than their immature livers can process and excrete it. Mild jaundice in the first few days of life is expected and typically resolves on its own. The danger arises when bilirubin accumulates to critically high levels. At those levels, bilirubin can cross the blood-brain barrier and deposit in specific areas of the brain, causing kernicterus, a form of brain damage that results in cerebral palsy, hearing loss, intellectual disability, vision problems, and difficulties with movement and coordination.

Kernicterus is not an unavoidable complication. It is a sentinel event. The Joint Commission’s Sentinel Event Alert No. 18 specifically identifies kernicterus as a reviewable sentinel event, meaning it should essentially never happen when care is properly delivered. The fact that it continues to occur in hospitals is a sign that screening and treatment protocols are being missed.

The AAP Screening Protocol Every Newborn Should Receive

The American Academy of Pediatrics Clinical Practice Guideline on hyperbilirubinemia in the newborn infant 35 weeks or more of gestation, updated in Pediatrics in 2022, sets out the standard of care that hospitals and pediatricians are expected to follow. The guideline calls for universal predischarge bilirubin screening of all newborns, either through a serum (blood) bilirubin test or a transcutaneous (skin-surface) measurement. A single visual assessment is not sufficient to rule out dangerous bilirubin levels because jaundice is not reliably visible until levels have already risen significantly.

The AAP guideline uses an hour-specific bilirubin nomogram, a chart that plots a baby’s bilirubin level against the baby’s age in hours of life. The nomogram defines risk zones (low risk, low-intermediate risk, high-intermediate risk, and high risk) and directs clinicians to the appropriate response for each zone. Phototherapy, treatment with blue-spectrum light that breaks down bilirubin in the skin, is indicated when bilirubin reaches a threshold specific to the baby’s gestational age and risk factors. Exchange transfusion, a more intensive intervention that replaces the baby’s blood to rapidly lower bilirubin, is indicated when levels are dangerously elevated or when phototherapy has failed to bring levels down adequately.

What a Missed or Delayed Diagnosis Looks Like

In kernicterus cases, medical records typically reveal one or more of the following failures: the predischarge bilirubin was not measured at all; a bilirubin level was obtained but was not plotted against the nomogram and compared to the appropriate phototherapy threshold; a high-intermediate or high-risk result was documented but the family was discharged without a follow-up plan; or a follow-up appointment was scheduled for a date that was too late given the baby’s trajectory. Some cases involve a parent calling the pediatrician’s office to report that their baby appeared deeply yellow or was unusually sleepy or difficult to feed, recognized warning signs of dangerous bilirubin levels, and not being instructed to seek emergency evaluation.

Our dedicated guide to NICU care failures covers a wider range of newborn care errors. For families whose child’s jaundice was identified but not managed appropriately in a neonatal intensive care setting, see our resource on NICU negligence and newborn care malpractice. This article focuses specifically on the failure to screen, identify, and treat hyperbilirubinemia before kernicterus develops.

A Hypothetical: Evaluating a Missed Follow-Up

The scenario below is a hypothetical, offered to illustrate how these cases are typically evaluated, not an account of an actual client or case result. A baby is discharged at 36 hours of life with a predischarge bilirubin result that plots in the high-intermediate risk zone on the AAP nomogram. The chart shows the result was documented, but no follow-up appointment was scheduled within the AAP-recommended window, and the family is instead given a standard two-week well-visit date. On day five, the baby is extremely difficult to wake and feeding poorly, and is taken to the emergency department with a bilirubin level well above the exchange-transfusion threshold. In a case built on facts like these, a reviewing expert would examine whether the documented risk-zone result should have triggered an earlier follow-up under the AAP guideline, and whether that earlier visit would more likely than not have caught the rising level before it reached the range associated with kernicterus. That causation question is what typically decides these cases, not simply whether the initial screening happened.

Risk factors that increase the chance of dangerous hyperbilirubinemia include a gestational age under 38 weeks, a blood-type incompatibility between mother and baby, significant bruising from a difficult delivery, and a sibling who previously needed phototherapy. The AAP guideline directs providers to factor these risk elements into the follow-up plan, not just the single bilirubin number, which is why two babies with a similar predischarge result can appropriately receive different follow-up timelines.

Signs and Long-Term Effects of Kernicterus

Acute bilirubin encephalopathy, the early, potentially reversible phase, presents with a baby who is extremely difficult to wake, feeds poorly, has a high-pitched cry, or shows arching of the neck and back. If treatment is not initiated at this stage, the injury progresses. The chronic form, kernicterus, produces a recognizable pattern: a movement disorder resembling athetoid cerebral palsy, upward gaze palsy, sensorineural hearing loss, and dental enamel hypoplasia. Intellectual disability may or may not be present. Children with kernicterus typically require lifelong therapy, specialized education, assistive technology, and ongoing medical care.

The costs associated with raising a child with kernicterus-related disabilities are substantial and extend across a lifetime. A comprehensive legal claim accounts not only for past medical expenses but also for future care needs, assistive devices, educational costs, lost earning capacity, and the non-economic impact on the child and family.

Illinois Law Requirements for a Kernicterus Malpractice Case

To bring a medical malpractice claim in Illinois, a plaintiff must establish that the provider had a duty of care, departed from the accepted standard, and that the departure caused the child’s injury. In kernicterus cases, the standard is well-defined: the AAP guideline and the Joint Commission sentinel event alert together create a clear picture of what should have been done and when. The departure, failure to screen, failure to treat at the appropriate threshold, or failure to arrange timely follow-up, is typically documentable from the hospital’s own records.

Under 735 ILCS 5/2-622, a medical malpractice complaint in Illinois must be accompanied by an attorney’s affidavit stating that a licensed healthcare professional has reviewed the facts and concluded there is a reasonable and meritorious basis for filing the claim. A written report from that reviewing professional must be attached. This requirement applies regardless of how clear the departure from standard care may appear from the records.

Illinois also imposes a statute of limitations on medical malpractice claims. Under 735 ILCS 5/13-212, a claim brought on behalf of a child generally must be filed within eight years of the negligent act, or before the child’s 22nd birthday, whichever comes first. Because kernicterus is a delivery-era or immediate-postnatal event with a fixed date, the eight-year prong is typically what governs rather than the later 22nd-birthday cap. If the hospital where your baby was born or readmitted is operated by a unit of local government, 745 ILCS 10/8-101(b) of the Tort Immunity Act applies instead, allowing two years from discovery of the injury with a four-year outer limit, and it should be confirmed as early as possible. An attorney can advise you on exactly which deadline governs your child’s specific situation.

Illinois does not cap non-economic damages in medical malpractice cases; the Illinois Supreme Court struck down the state’s prior statutory cap in Lebron v. Gottlieb Memorial Hospital, 237 Ill. 2d 217 (2010), a case that itself involved a birth injury. Illinois generally does not allow punitive damages in medical malpractice actions, so the value of a kernicterus claim is built around the child’s documented medical, therapy, and life-care needs rather than a punitive component.

Common Defenses in Kernicterus Cases

Hospitals and pediatric practices rarely concede a missed jaundice diagnosis quickly. Expect one or more of these arguments:

The predischarge bilirubin level did not clearly indicate high risk. A result near the boundary between risk zones on the nomogram can be interpreted differently, and this is a frequent point of dispute.
Follow-up instructions were given but not followed by the family. A defense may argue the family was told to watch for warning signs or attend an earlier visit and did not do so.
The rise in bilirubin was unusually rapid. Some babies, particularly those with certain blood-type incompatibilities, can develop hyperbilirubinemia faster than typical, and a defense may argue even timely follow-up would not have caught it.
Earlier treatment would not have changed the outcome. This causation argument requires expert opinion on how long the bilirubin level was elevated and whether the degree of injury would have differed with earlier phototherapy or exchange transfusion.

What Compensation Can Cover

A kernicterus claim can address economic damages, covering hospital and NICU bills, lifelong therapy, specialized education, assistive technology and hearing devices, and a parent’s lost income if caregiving requires reduced work hours, along with non-economic damages for the child’s pain and suffering and loss of normal life. As noted above, Illinois places no statutory cap on the non-economic category following Lebron, though the value of any specific claim still depends on the documented severity of the injury and the strength of the causation evidence.

Chicago and Cook County Considerations

Many Chicago-area hospitals discharge healthy newborns within 24 to 48 hours of birth, which places real weight on the predischarge bilirubin screening and the follow-up plan set at discharge. If your baby was born at one hospital and later readmitted to a different one for jaundice treatment, request records from both facilities, since the follow-up gap between discharge and readmission is often central to these cases. Birth injury lawsuits arising from a Cook County delivery are typically filed in the Circuit Court of Cook County.

How These Cases Are Investigated

A kernicterus investigation starts with the complete newborn chart, including every bilirubin measurement and how each was interpreted against the AAP nomogram, along with the documented discharge and follow-up plan. A neonatology or pediatric expert reviews whether the screening, risk-zone interpretation, and follow-up timing met the AAP guideline at each step. If the case proceeds, a pediatric neurologist typically reviews the imaging and clinical presentation to connect the degree and duration of bilirubin elevation to the severity of the child’s injury. Only once this review supports a claim can the affidavit of merit required under 735 ILCS 5/2-622 be completed and the case filed.

What to Gather Before You Call an Attorney

Every predischarge and postdischarge bilirubin result, with the exact time drawn
The discharge summary and the documented follow-up plan
Any records of calls to the pediatrician’s office reporting symptoms
Readmission records, if your baby was later hospitalized for jaundice
Records of phototherapy or exchange transfusion, if performed
MRI, hearing test, and neurology follow-up records

What to Say (and Not Say) to Insurers

A hospital’s insurer or a pediatric practice’s risk-management contact may reach out relatively early, sometimes while your child is still hospitalized for treatment. Keep any statements brief and factual, and avoid guessing at exact bilirubin numbers or dates from memory, since the medical record is the more reliable source once it has been fully reviewed. Do not sign a broad records release or any settlement-related paperwork before understanding what it covers, and it is reasonable to say you are gathering records and will respond once you have had a chance to review them with an attorney.

Recovery and Long-Term Care Planning

A child diagnosed with kernicterus typically needs a coordinated team of specialists, pediatric neurology, audiology, ophthalmology, and physical, occupational, and speech therapy among the most common early referrals. Illinois Early Intervention provides evaluation and therapy for children from birth to age three with delays or conditions that can cause delays, and many families continue with school-based services and specialist follow-up well beyond that age. Ask the treating team for a clear, written summary of the diagnosis and the recommended therapy plan, and keep every audiology and imaging report in one place, organized by date, since these records document how the injury has been characterized over time.

Frequently Asked Questions

Does every baby with jaundice need treatment?

No. Most newborn jaundice is mild and resolves without any intervention. A claim depends on whether a baby’s bilirubin level crossed a treatment threshold under the AAP guideline and whether that threshold was properly screened for and acted on, not on the fact that jaundice occurred.

How long do we have to file a claim?

Generally up to eight years from the date of the negligent act under 735 ILCS 5/13-212. If the hospital is publicly operated, a different limitation period applies under 745 ILCS 10/8-101(b) of the Tort Immunity Act, and it should be confirmed immediately.

Is there a cap on what our family could recover?

Illinois does not cap non-economic damages in medical malpractice cases following Lebron v. Gottlieb Memorial Hospital. Illinois generally does not allow punitive damages in these cases, so any recovery reflects documented losses.

Can both the birth hospital and our pediatrician’s office be named in the same case?

Often, yes. If the birth hospital completed the predischarge screening correctly but the follow-up plan was mismanaged by an outpatient pediatric practice, or the reverse, each party can bear independent responsibility for its own portion of the timeline.

What if our baby was breastfed and we were told the jaundice was just related to breastfeeding?

Breastfeeding-related jaundice is common and usually benign, but that explanation does not eliminate the need to actually measure and track the bilirubin level against the AAP nomogram. A provider who attributes visible jaundice to breastfeeding without checking or following up on an actual measurement has not necessarily ruled out a dangerous elevation.

How long does a kernicterus malpractice case typically take?

Given the number of records and experts usually involved, neonatology review, sometimes a second pediatric practice’s records, and pediatric neurology and audiology input, these cases commonly take one to three years from initial investigation through resolution.

Talk to a Chicago Attorney, Free Consultation

If your child was diagnosed with kernicterus or suffered brain damage after untreated jaundice, the attorneys at Phillips Law Offices are here to help. We handle complex birth injury cases involving neonatal care failures throughout Illinois. Call (312) 346-4262 or contact us online for a free, no-obligation consultation.

Untreated Newborn Jaundice and Kernicterus Brain Damage