Unspecified ovarian cyst, left side

This code signifies the presence of a fluid-filled sac on the left ovary that lacks specific characteristics to classify it further. It indicates a non-malignant, non-inflammatory, and non-endometriotic ovarian cyst where the precise type is not documented.

Use this code when documentation clearly states an "ovarian cyst, left side" without further specification of its type (e.g., follicular, corpus luteum, serous, mucinous). This is appropriate when imaging reports or physician notes identify a left ovarian cyst but do not provide additional diagnostic detail.

• Avoid using this code if the cyst type is known; instead, code to the most specific type available (e.g., N83.0- for follicular cyst).
• Ensure the documentation explicitly states "left side" to support this laterality. If laterality is unspecified, use N83.209.
• Do not use this code for ovarian masses or tumors that are suspected to be malignant; refer to the C56.- series for malignant neoplasms.