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ICD-10 Guide
ICD-10 CodesP05.13

P05.13

Billable

Newborn small for gestational age, 750-999 grams

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/11/2025

Code Description

ICD-10 P05.13 is a billable code used to indicate a diagnosis of newborn small for gestational age, 750-999 grams.

Key Diagnostic Point:

Newborns classified as small for gestational age (SGA) are those whose birth weight is below the 10th percentile for their gestational age. Specifically, P05.13 refers to infants weighing between 750 and 999 grams at birth. This condition can arise from various maternal factors, including inadequate maternal nutrition, placental insufficiency, and maternal health issues such as hypertension or diabetes. Delivery complications, such as preterm birth or intrauterine growth restriction (IUGR), can also contribute to SGA status. These infants are at increased risk for a range of health issues, including respiratory distress syndrome, hypoglycemia, and long-term developmental delays. Careful monitoring and management in the neonatal intensive care unit (NICU) are essential to address these risks and support optimal growth and development.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between SGA and other growth-related conditions.
  • Understanding maternal health factors that contribute to SGA.
  • Identifying and coding associated complications accurately.
  • Navigating documentation requirements for NICU admissions.

Audit Risk Factors

  • Inadequate documentation of maternal health conditions.
  • Failure to specify gestational age at delivery.
  • Misclassification of birth weight categories.
  • Lack of follow-up documentation on infant growth.

Specialty Focus

Medical Specialties

Neonatology

Documentation Requirements

Detailed records of birth weight, gestational age, and maternal health history are crucial. Documentation should include any complications during delivery and immediate postnatal care.

Common Clinical Scenarios

Common scenarios include preterm infants admitted to the NICU for respiratory support and monitoring for hypoglycemia.

Billing Considerations

Accurate coding requires understanding the interplay between maternal factors and neonatal outcomes, as well as the need for ongoing assessments.

Pediatrics

Documentation Requirements

Pediatric documentation should include growth charts, developmental assessments, and any interventions required for SGA infants.

Common Clinical Scenarios

Pediatric follow-up visits for SGA infants to monitor growth and development milestones.

Billing Considerations

Pediatricians must be aware of the long-term implications of SGA status and document any developmental delays or interventions.

Coding Guidelines

Inclusion Criteria

Use P05.13 When
  • 10 coding guidelines specify that SGA must be documented with both birth weight and gestational age
  • Accurate coding also requires noting any associated complications or maternal conditions

Exclusion Criteria

Do NOT use P05.13 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99460CPT Code

Initial hospital care, per day, for evaluation and management of a normal newborn

Clinical Scenario

Used for initial assessment of SGA infants in the NICU.

Documentation Requirements

Document weight, gestational age, and any immediate interventions.

Specialty Considerations

Neonatologists must ensure thorough documentation of all assessments.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of neonatal conditions, improving the ability to capture the nuances of SGA and its associated complications.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of neonatal conditions, improving the ability to capture the nuances of SGA and its associated complications.

Reimbursement & Billing Impact

reimbursement and quality reporting.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What factors contribute to a newborn being classified as SGA?

Factors include maternal health conditions such as hypertension, diabetes, nutritional deficiencies, and placental insufficiency. Additionally, multiple gestations and certain infections during pregnancy can also lead to SGA.