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ICD-10 Guide
ICD-10 CodesO26.02

O26.02

Billable

Excessive weight gain in pregnancy, second trimester

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

Code Description

ICD-10 O26.02 is a billable code used to indicate a diagnosis of excessive weight gain in pregnancy, second trimester.

Key Diagnostic Point:

Excessive weight gain during pregnancy, particularly in the second trimester, can pose significant risks to both maternal and fetal health. This condition is characterized by weight gain that exceeds the recommended guidelines based on pre-pregnancy body mass index (BMI). In the second trimester, women typically gain about 1 to 2 pounds per week, but excessive weight gain can lead to complications such as gestational diabetes, hypertension, and increased risk of cesarean delivery. It is essential for healthcare providers to monitor weight gain closely and provide counseling on nutrition and physical activity. Additionally, excessive weight gain can complicate existing maternal conditions, such as renal, cardiac, or respiratory issues, necessitating a multidisciplinary approach to care. Regular assessments and tailored interventions are crucial to mitigate risks associated with excessive weight gain during this critical period of pregnancy.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in recommended weight gain based on pre-pregnancy BMI
  • Need for interdisciplinary collaboration for high-risk patients
  • Potential overlap with other pregnancy-related conditions
  • Documentation of maternal health status and weight tracking

Audit Risk Factors

  • Inadequate documentation of weight gain tracking
  • Failure to note pre-existing conditions affecting weight gain
  • Lack of interdisciplinary notes on management plans
  • Insufficient patient education records regarding nutrition

Specialty Focus

Medical Specialties

Obstetrics and Gynecology

Documentation Requirements

Detailed records of weight gain, maternal health assessments, and counseling provided.

Common Clinical Scenarios

Routine prenatal visits where weight gain is monitored, and counseling is provided.

Billing Considerations

Consideration of cultural factors influencing dietary habits and weight management.

Maternal-Fetal Medicine

Documentation Requirements

Comprehensive documentation of high-risk factors, including renal, cardiac, and respiratory conditions.

Common Clinical Scenarios

Management of pregnancies complicated by pre-existing conditions requiring specialized care.

Billing Considerations

Close monitoring of maternal and fetal health, with adjustments to care plans as necessary.

Coding Guidelines

Inclusion Criteria

Use O26.02 When
  • Follow the official ICD
  • CM guidelines for coding pregnancy
  • related conditions, ensuring accurate documentation of weight gain and any associated complications
  • Specific criteria for excessive weight gain must be met, including tracking weight against established BMI guidelines

Exclusion Criteria

Do NOT use O26.02 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99213CPT Code

Established patient office visit, Level 3

Clinical Scenario

Used during routine prenatal visits to monitor weight gain and provide counseling.

Documentation Requirements

Document weight measurements, counseling provided, and any referrals made.

Specialty Considerations

Obstetricians should ensure that all aspects of maternal health are addressed during visits.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of pregnancy-related conditions, including excessive weight gain, which aids in better tracking and management of maternal health.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of pregnancy-related conditions, including excessive weight gain, which aids in better tracking and management of maternal health.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of pregnancy-related conditions, including excessive weight gain, which aids in better tracking and management of maternal health.

Resources

Clinical References

  • •
    American College of Obstetricians and Gynecologists (ACOG)

Coding & Billing References

  • •
    American College of Obstetricians and Gynecologists (ACOG)

Frequently Asked Questions

What constitutes excessive weight gain during pregnancy?

Excessive weight gain is defined as weight gain that exceeds the recommended guidelines based on pre-pregnancy BMI. For example, women with a normal BMI should gain between 25-35 pounds during pregnancy, while those with a higher BMI may have lower recommendations.