All ICD10 Codes

K90

Non-Billable
ChapterK00–K95
Rankcategory
Description

Intestinal malabsorption

About ICD-10-CM code K90

K90 is the ICD-10-CM diagnosis code for Intestinal malabsorption. It sits in K00-K95 Diseases of the Digestive System, within Other diseases of the digestive system (K90-K95). K90 is not billable on its own, coders must choose one of its more specific child codes instead.

Use a more specific code (5 billable, 2 non-billable)
K90.0Celiac diseaseK90.1Tropical sprueK90.2Blind loop syndrome, not elsewhere classifiedK90.3Pancreatic steatorrheaK90.4Other malabsorption due to intolerancehas subcodesK90.8Other intestinal malabsorptionhas subcodesK90.9Intestinal malabsorption, unspecified
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 11: Diseases of the Digestive System (K00-K95).

CH11 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • intestinal malabsorption following gastrointestinal surgery (K91.2)

Clinical Hierarchy

BillableHas subcodes
CH11Diseases of the digestive system (K00-K95)
K90-K95Other diseases of the digestive system (K90-K95)
K90Intestinal malabsorptionNot billable
K90.0Celiac diseaseBillable
K90.1Tropical sprueBillable
K90.2Blind loop syndrome, not elsewhere classifiedBillable
K90.3Pancreatic steatorrheaBillable
K90.4Other malabsorption due to intoleranceSubcodes
K90.8Other intestinal malabsorptionSubcodes
K90.9Intestinal malabsorption, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to K90:

chapterCH11
Diseases of the digestive system (K00-K95)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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