In simple words: This code describes a problem that can happen when a woman is undergoing treatment to help her get pregnant.The treatment involves medicines that stimulate the ovaries to produce more eggs.Sometimes, the ovaries overreact to the medicine, causing swelling, fluid buildup, and other issues, ranging from mild to severe. In rare cases, it can be life-threatening.

N98.1, Hyperstimulation of ovaries, is an ICD-10-CM code representing a complication arising from ovarian stimulation during fertility treatments like in-vitro fertilization (IVF) or artificial insemination.It encompasses a spectrum of severity, ranging from mild to life-threatening.Mild cases may present with ovarian enlargement and multiple ovarian follicles, while severe cases can involve ascites (fluid accumulation in the abdomen), pleural effusions (fluid in the lungs), edema (swelling), renal failure (kidney failure), respiratory distress, and even death. The pathophysiology involves increased vascular permeability due to vasoactive substances released by the hyperstimulated ovaries.

Example 1: A 35-year-old woman undergoing IVF treatment experiences mild ovarian hyperstimulation syndrome (OHSS) with mild abdominal discomfort and enlarged ovaries. This is managed with close monitoring and supportive care., A 40-year-old woman undergoing IVF develops moderate OHSS with significant abdominal distention, ascites, and pleural effusion. Hospitalization for intravenous fluid management and close monitoring is required., A 32-year-old woman undergoing ovulation induction experiences severe OHSS leading to respiratory distress, renal impairment, and thromboembolic complications.Urgent medical intervention, including intensive care support, is necessary.

Detailed medical records should include the specifics of the fertility treatment (type of stimulation protocol, medications used, dosages, and monitoring parameters),the severity of OHSS symptoms (e.g., abdominal pain, bloating, ascites, shortness of breath), laboratory findings (e.g., serum estradiol levels, hCG levels, and kidney function tests), and the management provided (e.g., supportive care, hospitalization, interventions).Imaging studies (ultrasound) confirming ovarian enlargement and fluid collections would be crucial.

** Accurate diagnosis and coding of OHSS require careful clinical evaluation of symptoms, laboratory data, and imaging findings.The severity of OHSS can vary considerably.Always refer to the most current ICD-10-CM coding guidelines for proper code selection.