K68.12 Psoas muscle abscess

Billable ICD-10-CM code, FY2026. Acts as a Major Complication or Comorbidity (MCC) as a secondary diagnosis.

Risk adjustment (HCC)

• CMS-HCC V28: HCC 78 — Intestinal Obstruction/Perforation
• CMS-HCC V22: HCC 33 — Intestinal Obstruction/Perforation
• ESRD V24: HCC 33

MS-DRG index

Defines the logic of DRG(s) 371-373 in MDC 06.

Approximate ICD-9-CM (GEMs)

• 567.31 Psoas muscle abscess

Code annotations containing back-references to K68.12

Back-references to K68

• Type 1 Excludes: K65 Peritonitis ("retroperitoneal infections (K68.-)")

Diagnosis Index entries for K68.12

• Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) › psoas muscle

Nearby codes

• K68 Disorders of retroperitoneum
• K68.1 Retroperitoneal abscess
• K68.11 Postprocedural retroperitoneal abscess
• K68.12 Psoas muscle abscess (this code)
• K68.19 Other retroperitoneal abscess
• K68.2 Retroperitoneal fibrosis
• K68.3 Retroperitoneal hematoma
• K68.9 Other disorders of retroperitoneum