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ICD-10-CM 2027 diagnosis code

K68.1Retroperitoneal abscess

Not billable — use a more specific code

K68.1 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About K68.1

K68.1 is the ICD-10-CM diagnosis code for retroperitoneal abscess. It belongs to category K68 (disorders of retroperitoneum), block K65-K6A (diseases of peritoneum, retroperitoneum and pelvis) and chapter 11 (diseases of the digestive system). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within K68 (disorders of retroperitoneum), K68.1 is specifically for retroperitoneal abscess. Related codes cover retroperitoneal fibrosis (K68.2), retroperitoneal hematoma (K68.3) and other disorders of retroperitoneum (K68.9).

To report this condition, pick the subcode that matches the documentation: K68.11 (abscess), K68.12 (abscess) and K68.19 (abscess).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under K68.1

Notes that apply from higher levels

Instructions written at a parent level also apply to K68.1.

Broader instructions also apply from Chapter 11: Diseases of the digestive system.

Codes whose notes reference K68.1

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about K68.1

Is K68.1 billable?

No. K68.1 is a header code. Report one of its more specific subcodes instead.