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ICD-10 Guide
ICD-10 CodesO24.03

O24.03

Billable

Pre-existing type 1 diabetes mellitus, in the puerperium

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/08/2025

Code Description

ICD-10 O24.03 is a billable code used to indicate a diagnosis of pre-existing type 1 diabetes mellitus, in the puerperium.

Key Diagnostic Point:

Pre-existing type 1 diabetes mellitus in the puerperium refers to the management and complications associated with women who have been diagnosed with type 1 diabetes prior to pregnancy and are now in the postpartum period. This condition requires careful monitoring and management to prevent complications such as hypoglycemia, hyperglycemia, and potential diabetic ketoacidosis. During the puerperium, the physiological changes that occur can affect insulin sensitivity and glucose metabolism, necessitating adjustments in insulin therapy. Women with type 1 diabetes are at increased risk for postpartum hemorrhage and infections, and their newborns may experience complications such as neonatal hypoglycemia or respiratory distress syndrome. Continuous glucose monitoring and regular follow-ups are essential to ensure maternal and fetal well-being during this critical period.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Requires understanding of diabetes management in pregnancy and postpartum.
  • Need for detailed documentation of insulin therapy adjustments.
  • Monitoring for potential complications unique to type 1 diabetes.
  • Coordination of care among multiple specialties (e.g., endocrinology, obstetrics).

Audit Risk Factors

  • Inadequate documentation of diabetes management and insulin adjustments.
  • Failure to document complications related to diabetes in the puerperium.
  • Lack of coordination notes between obstetric and endocrinology teams.
  • Inconsistent coding of related conditions such as postpartum hemorrhage.

Specialty Focus

Medical Specialties

Obstetrics and Gynecology

Documentation Requirements

Documentation must include detailed records of maternal blood glucose levels, insulin dosages, and any complications encountered during the puerperium.

Common Clinical Scenarios

Management of insulin therapy adjustments postpartum, monitoring for signs of infection or hemorrhage, and addressing breastfeeding challenges related to diabetes.

Billing Considerations

Coders must ensure that all relevant complications and management strategies are documented to support the use of O24.03.

Maternal-Fetal Medicine

Documentation Requirements

High-risk pregnancy documentation must include comprehensive assessments of fetal growth, maternal health, and any interventions required.

Common Clinical Scenarios

Monitoring for fetal macrosomia, assessing for congenital anomalies, and managing potential preterm labor due to diabetes-related complications.

Billing Considerations

High-risk coding requires careful attention to detail and collaboration with multiple healthcare providers.

Coding Guidelines

Inclusion Criteria

Use O24.03 When
  • According to ICD
  • CM guidelines, O24
  • 03 should be used when a patient with pre
  • existing type 1 diabetes is in the puerperium
  • Coders must ensure that the condition is documented as pre
  • existing and that any complications are also coded appropriately

Exclusion Criteria

Do NOT use O24.03 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99233CPT Code

Subsequent hospital care, per day

Clinical Scenario

Used for follow-up visits during the postpartum period for diabetes management.

Documentation Requirements

Documentation must include assessment of blood glucose levels and insulin management.

Specialty Considerations

Obstetricians should collaborate with endocrinologists for comprehensive care.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of diabetes-related conditions, improving the accuracy of patient records and facilitating better management of care.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of diabetes-related conditions, improving the accuracy of patient records and facilitating better management of care.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of diabetes-related conditions, improving the accuracy of patient records and facilitating better management of care.

Resources

Clinical References

  • •
    American Diabetes Association - Diabetes and Pregnancy

Coding & Billing References

  • •
    American Diabetes Association - Diabetes and Pregnancy

Frequently Asked Questions

What is the significance of coding O24.03 accurately?

Accurate coding of O24.03 is crucial for ensuring appropriate management of patients with pre-existing type 1 diabetes during the puerperium, as it impacts care coordination, reimbursement, and quality of care metrics.