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v1.0.0
ICD-10 Guide
ICD-10 CodesO24.0

O24.0

Billable

Pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperium

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

Code Description

ICD-10 O24.0 is a billable code used to indicate a diagnosis of pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperium.

Key Diagnostic Point:

Pre-existing type 1 diabetes mellitus in pregnancy poses significant risks to both the mother and fetus. This condition requires careful management throughout pregnancy, childbirth, and the puerperium to minimize complications. Women with type 1 diabetes often experience fluctuations in blood glucose levels, which can lead to adverse outcomes such as macrosomia, preterm birth, and congenital anomalies. Insulin management is crucial, as these patients may require adjustments in their insulin regimen to maintain optimal glycemic control. Regular fetal monitoring is essential to assess fetal growth and well-being, including ultrasound evaluations and non-stress tests. The multidisciplinary approach involving obstetricians, endocrinologists, and dietitians is vital for managing the complexities associated with type 1 diabetes in pregnancy. Education on self-monitoring of blood glucose and dietary modifications is also important to ensure the best possible outcomes for both mother and child.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Need for precise documentation of diabetes management and insulin therapy.
  • Variability in maternal blood glucose levels and their impact on fetal health.
  • Potential for multiple complications requiring additional coding.
  • Integration of care from multiple specialties (e.g., endocrinology, obstetrics).

Audit Risk Factors

  • Inadequate documentation of blood glucose monitoring.
  • Failure to document insulin adjustments and dietary changes.
  • Lack of detailed fetal monitoring records.
  • Misclassification of diabetes type (e.g., type 1 vs. type 2).

Specialty Focus

Medical Specialties

Obstetrics and Gynecology

Documentation Requirements

Detailed records of maternal health, insulin therapy, and fetal monitoring.

Common Clinical Scenarios

Management of insulin therapy adjustments during pregnancy, monitoring for fetal growth abnormalities.

Billing Considerations

Ensure accurate coding of any complications arising from diabetes, such as hypertensive disorders.

Maternal-Fetal Medicine

Documentation Requirements

Comprehensive documentation of high-risk assessments and interventions.

Common Clinical Scenarios

Management of high-risk pregnancies with pre-existing diabetes, including specialized ultrasound evaluations.

Billing Considerations

Focus on the coordination of care among multiple specialists and the need for detailed documentation of all interventions.

Coding Guidelines

Inclusion Criteria

Use O24.0 When
  • Follow the official ICD
  • CM guidelines for coding diabetes in pregnancy, ensuring that all relevant documentation is included to support the diagnosis
  • Specific criteria for gestational diabetes should not be confused with pre
  • existing diabetes

Exclusion Criteria

Do NOT use O24.0 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99213CPT Code

Established patient office visit, level 3

Clinical Scenario

Used for routine follow-up visits for diabetes management during pregnancy.

Documentation Requirements

Document blood glucose levels, insulin adjustments, and any complications.

Specialty Considerations

Obstetricians should ensure comprehensive records of diabetes management are maintained.

76801CPT Code

Ultrasound, pregnant uterus, first trimester

Clinical Scenario

Used for early fetal monitoring in patients with pre-existing diabetes.

Documentation Requirements

Document indications for ultrasound and findings related to fetal growth.

Specialty Considerations

Maternal-fetal medicine specialists may perform additional ultrasounds for high-risk assessments.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of diabetes in pregnancy, improving the ability to capture the complexities of managing pre-existing conditions. This specificity aids in better patient care and more accurate reimbursement.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of diabetes in pregnancy, improving the ability to capture the complexities of managing pre-existing conditions. This specificity aids in better patient care and more accurate reimbursement.

Reimbursement & Billing Impact

reimbursement.

Resources

Clinical References

  • •
    American Diabetes Association - Diabetes Care in Pregnancy

Coding & Billing References

  • •
    American Diabetes Association - Diabetes Care in Pregnancy

Frequently Asked Questions

What are the key management strategies for a pregnant patient with type 1 diabetes?

Key management strategies include regular monitoring of blood glucose levels, adjusting insulin dosages as needed, maintaining a balanced diet, and frequent prenatal visits to monitor fetal growth and well-being.