K90.89 Other intestinal malabsorption

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

Applies from K90 Intestinal malabsorption

Excludes1 (never code together)

• intestinal malabsorption following gastrointestinal surgery (K91.2)

Risk adjustment (HCC)

• RxHCC V08: HCC 66 — Pancreatic Disorders and Intestinal Malabsorption, Except Pancreatitis

MS-DRG index

Defines the logic of DRG(s) 391-392 in MDC 06.

Approximate ICD-9-CM (GEMs)

• 579.8 Other specified intestinal malabsorption (approximate)

Code annotations containing back-references to K90.89

Back-references to K90.89

• Code Also: I27.841 Fontan-associated lymphatic dysfunction ("Fontan associated protein-losing enteropathy (K90.89)")

Back-references to K90

• Type 1 Excludes: K59 Other functional intestinal disorders ("intestinal malabsorption (K90.-)")

Diagnosis Index entries for K90.89

• Gastropathy › exudative
• Malabsorption › calcium
• Malabsorption › intestinal › specified NEC

Nearby codes

• K90.82 Short bowel syndrome
• K90.821 Short bowel syndrome with colon in continuity
• K90.822 Short bowel syndrome without colon in continuity
• K90.829 Short bowel syndrome, unspecified
• K90.83 Intestinal failure
• K90.89 Other intestinal malabsorption (this code)
• K90.9 Intestinal malabsorption, unspecified