ICD-10 Code for Diverticulum
Also indexed as (multiple)
The ICD-10-CM code for diverticulum is K57.90 — Diverticulosis of intestine, part unspecified, without perforation or abscess without bleeding. This is the code the Alphabetic Index gives for diverticulum with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
K57.90 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which diverticulum code should you use?
The Alphabetic Index lists 22 codes under Diverticulum, diverticula. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| appendix | K38.2 | Diverticulum of appendix | |
| bladder | N32.3 | Diverticulum of bladder | |
| bronchus | Q32.4 | Other congenital malformations of bronchus | |
| calyx, calyceal | N28.89 | Other specified disorders of kidney and ureter | |
| cardia | K31.4 | Gastric diverticulum | |
| epiphrenic | K22.5 | Diverticulum of esophagus, acquired | |
| esophagus | Q39.6 | Congenital diverticulum of esophagus | |
| fallopian tube | N83.8 | Other noninflammatory disorders of ovary, fallopian tube and broad ligament | |
| gastric | K31.4 | Gastric diverticulum | |
| heart | Q24.8 | Other specified congenital malformations of heart | |
| kidney | N28.89 | Other specified disorders of kidney and ureter | |
| Meckel's | Q43.0 | Meckel's diverticulum (displaced) (hypertrophic) | |
| midthoracic | K22.5 | Diverticulum of esophagus, acquired | |
| pericardium | Q24.8 | Other specified congenital malformations of heart | |
| pharyngoesophageal | Q39.6 | Congenital diverticulum of esophagus | |
| pharynx | Q38.7 | Congenital pharyngeal pouch | |
| Rokitansky's | K22.5 | Diverticulum of esophagus, acquired | |
| seminal vesicle | N50.89 | Other specified disorders of the male genital organs | |
| stomach | K31.4 | Gastric diverticulum | |
| trachea | J39.8 | Other specified diseases of upper respiratory tract | |
| ureter | N28.89 | Other specified disorders of kidney and ureter | |
| ureterovesical orifice | N28.89 | Other specified disorders of kidney and ureter | |
| urethra | N36.1 | Urethral diverticulum | |
| ventricle, left | Q24.8 | Other specified congenital malformations of heart | |
| vesical | N32.3 | Diverticulum of bladder | |
| Zenker's | K22.5 | Diverticulum of esophagus, acquired |
Diverticulum bladder
| congenital | Q64.6 | Congenital diverticulum of bladder |
Diverticulum bronchus
| acquired | J98.09 | Other diseases of bronchus, not elsewhere classified |
Diverticulum cecum
| congenital | Q43.8 | Other specified congenital malformations of intestine |
Diverticulum colon
| congenital | Q43.8 | Other specified congenital malformations of intestine |
Diverticulum duodenum
| congenital | Q43.8 | Other specified congenital malformations of intestine |
Diverticulum esophagus
| acquired | K22.5 | Diverticulum of esophagus, acquired |
Diverticulum pericardium
| acquired | I31.8 | Other specified diseases of pericardium |
Diverticulum pharyngoesophageal
| acquired | K22.5 | Diverticulum of esophagus, acquired |
Diverticulum rectosigmoid
| congenital | Q43.8 | Other specified congenital malformations of intestine |
Diverticulum sigmoid
| congenital | Q43.8 | Other specified congenital malformations of intestine |
Diverticulum stomach
| congenital | Q40.2 | Other specified congenital malformations of stomach |
Diverticulum ureter
| congenital | Q62.8 | Other congenital malformations of ureter |
Diverticulum urethra
| congenital | Q64.79 | Other congenital malformations of bladder and urethra |
Diverticulum vesical
| congenital | Q64.6 | Congenital diverticulum of bladder |
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources