Summary & Overview
HCPCS S3620: Newborn Metabolic Screening Panel, Kit and Tests
HCPCS Level II code S3620 represents a packaged newborn metabolic screening panel that covers the test kit, postage, and the state-specified laboratory assays used to identify inborn errors of metabolism and other congenital conditions in neonates. Newborn screening is a routine public-health service performed shortly after birth and is vital for early detection and timely intervention to prevent serious morbidity.
Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical and billing overview of the code, typical sites of service, common modifiers associated with laboratory and ancillary services, and a summary of how this HCPCS Level II code is used in newborn screening workflows. The publication outlines benchmark topics such as coverage inclusion, packaging of test kits and postage within a single code, and common billing considerations for inpatient newborn nursery and outpatient newborn screening programs.
The content provides national context for payers and administrators, clarifies the service type and expected clinical use, and flags areas where payers often define coverage policy or billing requirements. Data not available in the input: specific payer policy details, reimbursement rates, associated taxonomies, ICD-10 diagnoses, and related codes.
Billing Code Overview
HCPCS Level II code S3620 describes a newborn metabolic screening panel that includes the test kit, postage, and the laboratory tests specified by the state for inclusion in the panel. Examples of tests commonly included in this panel are galactose, hemoglobin electrophoresis, 17-hydroxyprogesterone (17-OHP), phenylalanine (PKU), and total thyroxine (T4).
Service Type: Newborn screening laboratory services, packaged kit and testing
Typical Site of Service: Hospital newborn nursery, birthing center, or public health laboratory setting
Clinical & Coding Specifications
Clinical Context
A newborn infant born at a hospital nursery undergoes state-mandated newborn metabolic screening prior to discharge. Nursing staff collect a heel-stick blood specimen onto a filter paper card, apply the appropriate test kit components and paperwork, and package the specimen with provided postage for courier pickup. The laboratory tests ordered by the state public health program commonly include phenylalanine (PKU), total thyroxine (T4), hemoglobin electrophoresis (sickle cell screening), 17-hydroxyprogesterone (congenital adrenal hyperplasia screening), and galactose testing. The typical workflow: newborn identification and consent per hospital policy, specimen collection via heel stick within 24–48 hours of life (or as required by state rules), completion of the test kit forms, labeling and batching of specimens, shipping to the state public health laboratory or contracted commercial laboratory, and documented reporting of results to the newborn’s medical record and the primary pediatric provider. Follow-up processes include reflex testing or repeat specimen requests when initial results are abnormal, and notification to the newborn’s pediatrician and the state newborn screening program for confirmatory testing and referrals as indicated.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier — standard service | Use when no special circumstances apply and the service is billed as usual |
26 | Professional component | If a physician provides interpretive or consultative services associated with laboratory testing (rare for newborn panel) |
59 | Distinct procedural service | When another unrelated procedure is performed on the same day and must be reported separately |
91 | Repeat clinical diagnostic laboratory test | Use when a repeat newborn screening test is performed on the same patient for verification or monitoring |
TC | Technical component | If billing separates technical laboratory processing from professional interpretation (used when lab and physician bill separately) |
Q5 | Service furnished in a partial hospitalization program — lab-specific use varies | Rarely used; apply only if contractual requirements specify this modifier for lab services in certain programs |
QK | Medical direction by a physician — more than four concurrent anesthesia cases (laboratory rarely) | Generally not applicable; included only if contractual payer requires specific reporting |
QX | Claim of modifier usage by nonphysician practitioner (specific to modifier pairing) | Use when a nonphysician practitioner performs a component of service and payer requires attestation |
QY | Attending physician absence — clinical laboratory contexts | Use if payer-specific rules require attestation for certain lab services provided in absence of attending physician |
90 | Reference (outside) laboratory | Use when the performing laboratory is an outside or reference lab and billing must indicate that status |
91 | Repeat (listed again for emphasis) | See above — used for repeat testing when initial specimen unacceptable or for monitoring |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
207R00000X | Pediatric Medicine | Pediatricians order and follow newborn screening results and referrals |
207L00000X | Obstetrics & Gynecology | Labor and delivery teams coordinate initial newborn specimen collection prior to discharge |
1835P0200X | Clinical Laboratory | Clinical laboratory directors and medical technologists perform processing and testing |
2080P0207X | Neonatal-Perinatal Medicine | Neonatologists manage sick or preterm infants who may require altered screening timing or additional testing |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
P07.30 | Preterm newborn, unspecified weeks of gestation | Preterm infants may require altered timing for newborn screening and repeat testing |
P07.32 | Newborn, gestational age 28 completed weeks | Specific gestational age codes inform timing and interpretation of screening results |
P08.0 | Newborn omphalitis and other infections (placeholder) | Not typically a primary reason for metabolic screen but reflects concurrent conditions that may affect testing timing |
Z38.00 | Single liveborn infant, delivered vaginally | Birth outcome coding associated with routine newborn screening workflow and billing documentation |
Z00.110 | Newborn metabolic screening performed | Used to document the screening encounter and support billing for newborn screening services |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
36415 | Collection of venous blood by venipuncture | May be used if venous sample is required for confirmatory testing after abnormal newborn screen |
80055 | Gastrointestinal panel; stool, etc. (example multiplex panels) | Not directly related — Data not available in the input. |
80300 | Drug test, presumptive, any number of drug classes; qualitative | Not typically related to newborn metabolic screening — Data not available in the input. |
84270 | Phenylalanine testing (amino acid analysis) | Used for confirmation of elevated phenylalanine identified on newborn screen |
84436 | Thyroxine (T4) measurement | Performed when the newborn screen flags low T4 or to confirm primary congenital hypothyroidism |