ICD-10-CM Book 2027 Edition

Chapters  /  Chapter 11  /  K65-K6A

Diseases of peritoneum, retroperitoneum and pelvis (K65-K6A)

K65 Peritonitis
UseAdditionalCode code (B95-B97), to identify infectious agent, if known
CodeAlso if applicable diverticular disease of intestine (K57.-)
Excludes1 acute appendicitis with generalized peritonitis (K35.2-)
aseptic peritonitis (T81.6)
benign paroxysmal peritonitis (E85.0)
chemical peritonitis (T81.6)
gonococcal peritonitis (A54.85)
neonatal peritonitis (P78.0-P78.1)
pelvic peritonitis, female (N73.3-N73.5)
periodic familial peritonitis (E85.0)
peritonitis due to talc or other foreign substance (T81.6)
peritonitis in chlamydia (A74.81)
peritonitis in diphtheria (A36.89)
peritonitis in syphilis (late) (A52.74)
peritonitis in tuberculosis (A18.31)
peritonitis with or following abortion or ectopic or molar pregnancy (O00-O07, O08.0)
peritonitis with or following appendicitis (K35.-)
puerperal peritonitis (O85)
retroperitoneal infections (K68.-)
K65.0 Generalized (acute) peritonitis
Pelvic peritonitis (acute), male
Subphrenic peritonitis (acute)
Suppurative peritonitis (acute)
K65.1 Peritoneal abscess
Abdominopelvic abscess
Abscess (of) omentum
Abscess (of) peritoneum
Mesenteric abscess
Retrocecal abscess
Subdiaphragmatic abscess
Subhepatic abscess
Subphrenic abscess
Excludes2 pelvic abscess (extraperitoneal) (K6A.0-)
K65.2 Spontaneous bacterial peritonitis
Excludes1 bacterial peritonitis NOS (K65.9)
K65.3 Choleperitonitis
Peritonitis due to bile
K65.4 Sclerosing mesenteritis
Fat necrosis of peritoneum
(Idiopathic) sclerosing mesenteric fibrosis
Mesenteric lipodystrophy
Mesenteric panniculitis
Retractile mesenteritis
K65.8 Other peritonitis
Chronic proliferative peritonitis
Peritonitis due to urine
K65.9 Peritonitis, unspecified
Bacterial peritonitis NOS
K6A Diseases of the pelvis, not elsewhere classified
K6A.0 Pelvic abscess
CodeAlso , if applicable:
diverticular disease of intestine (K57.-)
female pelvic inflammatory disease (N73.-)
UseAdditionalCode code (B95-B97), to identify infectious agent, if known
Excludes2 peritoneal abscess (K65.1)
retroperitoneal abscess (K68.1-)
K6A.01 Prevesical abscess
Retropubic abscess
K6A.09 Other pelvic abscess
Pelvic abscess, unspecified
K6A.8 Other diseases of the pelvis, not elsewhere classified
K66 Other disorders of peritoneum
Excludes2 ascites (R18.-)
peritoneal effusion (chronic) (R18.8)
K66.0 Peritoneal adhesions (postprocedural) (postinfection)
Adhesions (of) abdominal (wall)
Adhesions (of) diaphragm
Adhesions (of) intestine
Adhesions (of) male pelvis
Adhesions (of) omentum
Adhesions (of) stomach
Adhesive bands
Mesenteric adhesions
Excludes1 peritoneal adhesions with intestinal obstruction (K56.5-)
Excludes2 female pelvic adhesions [bands] (N73.6)
female pelvic postprocedural adhesions (N99.4)
K66.1 Hemoperitoneum
Peritoneal hematoma
Peritoneal hemorrhage
Excludes1 traumatic hemoperitoneum (S36.8-)
Excludes2 retroperitoneal hematoma (K68.3)
retroperitoneal hemorrhage (K68.3)
K66.8 Other specified disorders of peritoneum
K66.9 Disorder of peritoneum, unspecified
K67 Disorders of peritoneum in infectious diseases classified elsewhere
CodeFirst underlying disease, such as:
congenital syphilis (A50.0)
helminthiasis (B65.0 -B83.9)
Excludes1 peritonitis in chlamydia (A74.81)
peritonitis in diphtheria (A36.89)
peritonitis in gonococcal (A54.85)
peritonitis in syphilis (late) (A52.74)
peritonitis in tuberculosis (A18.31)
nonPrimary Yes
K68 Disorders of retroperitoneum
K68.1 Retroperitoneal abscess
K68.11 Postprocedural retroperitoneal abscess
Excludes2 infection following procedure (T81.4-)
K68.12 Psoas muscle abscess
K68.19 Other retroperitoneal abscess
K68.2 Retroperitoneal fibrosis
CodeAlso , if applicable, associated obstruction of ureter (N13.5)
K68.3 Retroperitoneal hematoma
Retroperitoneal hemorrhage
K68.9 Other disorders of retroperitoneum