2023 ICD-10-CM Changes: What ASCs Need to Know

By Mandeara Frye, RHIA, CPC, CPMA, CASCC, Senior Director, Coding

New diagnosis codes go into effect on Oct. 1, 2022, for fiscal year (FY) 2023. Make sure your ASC is ready for the changes by updating any software as needed and sharing documentation improvement tips with your providers.

There are some revisions ASCs will need to understand and take into consideration if the affected procedures are currently being performed or will be performed in their facilities.

The biggest changes this year are in the female genitourinary and obstetric sections of the ICD-10-CM codes. Of note, the endometriosis code selections are drastically expanding from 9 to 135 codes. To avoid unspecified diagnosis codes, surgeons must document the specific location of endometriosis and the depth, either superficial or deep.

For example, endometriosis of the ovary(ies) was previously reported with one code: N80.1 — Endometriosis of ovary.

For FY 2023, there will now be 12 different code selections:

• N80.101— Endometriosis of right ovary, unspecified depth
• N80.102 — Endometriosis of left ovary, unspecified depth
• N80.103 — Endometriosis of bilateral ovaries, unspecified depth
• N80.109 — Endometriosis of ovary, unspecified side, unspecified depth
• N80.111 — Superficial endometriosis of right ovary
• N80.112 — Superficial endometriosis of left ovary
• N80.113 — Superficial endometriosis of bilateral ovaries
• N80.119 — Superficial endometriosis of ovary, unspecified ovary
• N80.121 — Deep endometriosis of right ovary
• N80.122 — Deep endometriosis of left ovary
• N80.123 — Deep endometriosis of bilateral ovaries
• N80.129 — Deep endometriosis of ovary, unspecified ovary

Similarly, the code for endometriosis of the pelvic peritoneum has expanded to take into account the specific locations of anterior or posterior cul-de-sac; left, right, or bilateral pelvic sidewall; left, right, or bilateral pelvic brim; pelvic peritoneum; other specified sites. There are also codes for specific parts of the intestine as well as specific organs and nerves.

There are changes to other body system diagnoses as well, so it’s important to review and determine what is most applicable to your center and staff and then educate as needed.