Medicaid and CHIP Neonatal Abstinence Syndrome Rates 2017-2021

5 years of data on the number and rate of Neonatal Abstinence Syndrome per 1,000 births covered by Medicaid or CHIP. The dataset includes metrics derived from T-MSIS Analytic Files and flags for data quality concerns and confidentiality suppression. Data from Maryland, Tennessee, and Utah are omitted for specific years due to data quality issues.

Use Cases

• Analyze trends in NAS rate per 1,000 newborns across the 2017-2021 period for Medicaid/CHIP populations.
• Identify states with data quality concerns flagged in the 'Data Quality' column for specific years.
• Filter out records suppressed for confidentiality ('DS') or due to unusable data ('DQ') to create a clean analysis cohort.

Strengths

• Provides a 5-year time series (2017-2021) for longitudinal analysis.
• Includes explicit data quality flags ('DQ', 'DS') and state exclusions, documenting known limitations.
• Metrics are based on the authoritative T-MSIS Analytic Files (TAF) for Medicaid and CHIP.

Limitations

• Data for Maryland, Tennessee, and Utah are omitted for multiple years due to unusable diagnosis or procedure codes.
• Suppression for confidentiality ('DS') and data quality ('DQ') reduces usable data points for some states and years.
• Relies on state-submitted claims data with known quality issues, as documented in the DQ Atlas.

Provenance

Source

U.S. Department of Health & Human Services via T-MSIS Analytic Files (TAF).

Collection Method

Derived from Medicaid and CHIP enrollment and claims data submitted by states.

Time Range

2017 to 2021

Freshness

Data current through 2021, with metadata updated in February 2025.

Geography

United States (excluding data from Maryland, Tennessee, and Utah for specific years).