ICD Code O99.611

ICD code O99.611 is diseases of the digestive system that complicate pregnancy during the first trimester.

1. Patient is currently pregnant and in the first trimester (up to 13 weeks gestation).

2. Presence of a diagnosed disease or disorder affecting the digestive system (e.g., gastritis, peptic ulcer, inflammatory bowel disease, liver disorders).

3. The digestive system disease is complicating or adversely affecting the management or course of the pregnancy.

4. Clinical documentation clearly links the digestive system condition as a complicating factor during the first trimester.

5. Symptoms may include, but are not limited to, abdominal pain, nausea, vomiting, diarrhea, constipation, gastrointestinal bleeding, or abnormal liver function tests, when these are attributed to a diagnosed digestive system disease and not solely to normal pregnancy changes.

Relevant CPT codes that may be used to treat ICD code O99.611 include:

- 99201–99205 (Office or other outpatient visit, new patient)

- 99211–99215 (Office or other outpatient visit, established patient)

- 59400 (Routine obstetric care including antepartum care, vaginal delivery, and postpartum care)

- 59425, 59426 (Antepartum care only)

- 59510 (Routine obstetric care including antepartum care, cesarean delivery, and postpartum care)

- 59610, 59618 (Routine obstetric care after previous cesarean delivery)

- 96372 (Therapeutic, prophylactic, or diagnostic injection)

- 36415 (Collection of venous blood by venipuncture)

- 80048, 80053 (Basic or comprehensive metabolic panel)

- 81000–81003 (Urinalysis)

- 82947 (Glucose; quantitative, blood)

- 83036 (Hemoglobin A1c)

- 99281–99285 (Emergency department visits, if applicable)

CPT code selection will depend on the specific services rendered and clinical scenario.

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