2019 ICD-10-CM Diagnosis Code K90.49

Malabsorption due to intolerance, not elsewhere classified

    2017 - New Code 2018 2019 Billable/Specific Code
  • K90.49 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM K90.49 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of K90.49 - other international versions of ICD-10 K90.49 may differ.
Applicable To
  • Malabsorption due to intolerance to carbohydrate
  • Malabsorption due to intolerance to fat
  • Malabsorption due to intolerance to protein
  • Malabsorption due to intolerance to starch
The following code(s) above K90.49 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to K90.49:
  • K00-K95
    2019 ICD-10-CM Range K00-K95

    Diseases of the digestive system

    Type 2 Excludes
    • 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)
    Diseases of the digestive system
  • K90
    ICD-10-CM Diagnosis Code K90

    Intestinal malabsorption

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • intestinal malabsorption following gastrointestinal surgery (K91.2)
    Intestinal malabsorption
  • K90.4
    ICD-10-CM Diagnosis Code K90.4

    Other malabsorption due to intolerance

      2016 2017 - Deleted Code 2017 - New Code 2018 2019 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • celiac gluten-sensitive enteropathy (K90.0)
    • lactose intolerance (E73.-)
    Other malabsorption due to intolerance
ICD-10-CM K90.49 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 391 Esophagitis, gastroenteritis and miscellaneous digestive disorders with mcc
  • 392 Esophagitis, gastroenteritis and miscellaneous digestive disorders without mcc

Convert K90.49 to ICD-9-CM

Code History
  • 2017 (effective 10/1/2016): New code
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change

Diagnosis Index entries containing back-references to K90.49:
  • Absorption
    • fat, disturbance K90.49
    • carbohydrate, disturbance K90.49
    • protein, disturbance K90.49
    • starch, disturbance K90.49
  • Decrease (d)
  • Disturbance(s) - see also Disease
    • absorption K90.9
      ICD-10-CM Diagnosis Code K90.9

      Intestinal malabsorption, unspecified

        2016 2017 2018 2019 Billable/Specific Code
      • fat K90.49
      • carbohydrate K90.49
      • protein K90.49
      • starch K90.49
  • Enteropathy K63.9
    ICD-10-CM Diagnosis Code K63.9

    Disease of intestine, unspecified

      2016 2017 2018 2019 Billable/Specific Code
    • protein-losing K90.49
  • Intolerance
    • fat NEC K90.49
    • food K90.49
    • milk NEC K90.49
    • carbohydrate K90.49
    • protein K90.49
    • starch NEC K90.49
  • Malabsorption K90.9
    ICD-10-CM Diagnosis Code K90.9

    Intestinal malabsorption, unspecified

      2016 2017 2018 2019 Billable/Specific Code
    • carbohydrate K90.49
    • fat K90.49
    • protein K90.49
    • starch K90.49
  • Sprue (tropical) K90.1
    ICD-10-CM Diagnosis Code K90.1

    Tropical sprue

      2016 2017 2018 2019 Billable/Specific Code
    Applicable To
    • Sprue NOS
    • Tropical steatorrhea
    • idiopathic K90.49

ICD-10-CM Codes Adjacent To K90.49
K86.89 Other specified diseases of pancreas
K86.9 Disease of pancreas, unspecified
K87 Disorders of gallbladder, biliary tract and pancreas in diseases classified elsewhere
K90 Intestinal malabsorption
K90.0 Celiac disease
K90.1 Tropical sprue
K90.2 Blind loop syndrome, not elsewhere classified
K90.3 Pancreatic steatorrhea
K90.4 Other malabsorption due to intolerance
K90.41 Non-celiac gluten sensitivity
K90.49 Malabsorption due to intolerance, not elsewhere classified
K90.8 Other intestinal malabsorption
K90.81 Whipple's disease
K90.89 Other intestinal malabsorption
K90.9 Intestinal malabsorption, unspecified
K91 Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified
K91.0 Vomiting following gastrointestinal surgery
K91.1 Postgastric surgery syndromes
K91.2 Postsurgical malabsorption, not elsewhere classified
K91.3 Postprocedural intestinal obstruction
K91.30 …… unspecified as to partial versus complete

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.