ICD-10-CM Section · K65-K68

Diseases of peritoneum and retroperitoneum

22 codes in this section

Total Codes

Billable

Header (Non-Billable)

Top-Level Codes

About Section K65-K68

Section K65-K68 (K65-K68) covers diseases of peritoneum and retroperitoneum. It sits within the Diseases of the digestive system chapter (K00-K95). This section contains 22 ICD-10-CM codes, 18 billable diagnoses you can submit on a claim, and 4 non-billable header codes used to organize the hierarchy.

Codes are organized below by 3-character root. Click the root to see all subcodes underneath it, or click any individual code for full coverage data, payer policies, and linked CPT procedures.

Codes in K65-K68

Grouped by 3-character root code. Click any code for full detail.

K65 Peritonitis

7 subcodes

K65.0	Generalized (acute) peritonitis	Billable
K65.1	Peritoneal abscess	Billable
K65.2	Spontaneous bacterial peritonitis	Billable
K65.3	Choleperitonitis	Billable
K65.4	Sclerosing mesenteritis	Billable
K65.8	Other peritonitis	Billable
K65.9	Peritonitis, unspecified	Billable

K66 Other disorders of peritoneum

4 subcodes

K66.0	Peritoneal adhesions (postprocedural) (postinfection)	Billable
K66.1	Hemoperitoneum	Billable
K66.8	Other specified disorders of peritoneum	Billable
K66.9	Disorder of peritoneum, unspecified	Billable

K67 Disorders of peritoneum in infectious diseases classified elsewhere

0 subcodes

K68 Disorders of retroperitoneum

7 subcodes

K68.1	Retroperitoneal abscess	Header
K68.11	Postprocedural retroperitoneal abscess	Billable
K68.12	Psoas muscle abscess	Billable
K68.19	Other retroperitoneal abscess	Billable
K68.2	Retroperitoneal fibrosis	Billable
K68.3	Retroperitoneal hematoma	Billable
K68.9	Other disorders of retroperitoneum	Billable