2024 ICD-10-CM Diagnosis Code K90.49

Malabsorption due to intolerance, not elsewhere classified

ICD-10-CM Code:
K90.49
ICD-10 Code for:
Malabsorption due to intolerance, not elsewhere classified
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Chronic
Code Navigator:

Code Classification

  • Diseases of the digestive system
    (K00–K95)
    • Other diseases of the digestive system
      (K90-K95)
      • Intestinal malabsorption
        (K90)

K90.49 is a billable diagnosis code used to specify a medical diagnosis of malabsorption due to intolerance, not elsewhere classified. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Chronic diarrhea of infants AND/OR young children
  • Congenital chronic diarrhea with protein-losing enteropathy
  • D-Xylose intolerance
  • D-Xylose tolerance - finding
  • Exudative enteropathy
  • Gastrointestinal tolerance finding
  • Impaired intestinal fat absorption
  • Impaired intestinal protein absorption
  • Intestinal malabsorption
  • Intestinal malabsorption
  • Intestinal malabsorption
  • Intestinal malabsorption
  • Intestinal malabsorption
  • Intestinal malabsorption
  • Intestinal malabsorption
  • Intestinal malabsorption of carbohydrate
  • Intestinal malabsorption of fat
  • Intestinal malabsorption of protein
  • Intolerance to cow milk
  • Intolerance to food
  • Intolerance to infant formula
  • Intolerance to milk
  • Intolerance to monosodium glutamate
  • Malabsorption due to intolerance to carbohydrate
  • Malabsorption due to intolerance to fat
  • Malabsorption due to intolerance to protein
  • Malabsorption due to intolerance to soy protein
  • Monosodium glutamate symptom complex
  • Protein malabsorption
  • Protein-losing enteropathy
  • Protein-losing enteropathy
  • Syndrome of carbohydrate intolerance
  • Wheat intolerance

Clinical Classification

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Malabsorption due to intolerance to carbohydrate
  • Malabsorption due to intolerance to fat
  • Malabsorption due to intolerance to protein
  • Malabsorption due to intolerance to starch

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Replacement Code

K9049 replaces the following previously assigned ICD-10-CM code(s):

  • K90.4 - Malabsorption due to intolerance, not elsewhere classified
  • K90.4 - Other malabsorption due to intolerance

Convert K90.49 to ICD-9-CM

  • ICD-9-CM Code: 579.8 - Intest malabsorption NEC
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education


Malabsorption Syndromes

Your small intestine does most of the digesting of the foods you eat. If you have a malabsorption syndrome, your small intestine cannot absorb nutrients from foods.

Causes of malabsorption syndromes include:

  • Celiac disease
  • Lactose intolerance
  • Short bowel syndrome. This happens after surgery to remove half or more of the small intestine. You might need the surgery if you have a problem with the small intestine from a disease, injury, or birth defect.
  • Whipple disease, a rare bacterial infection
  • Genetic diseases
  • Certain medicines

Symptoms of different malabsorption syndromes can vary. They often include chronic diarrhea, abnormal stools, weight loss, and gas. Your doctor may use lab, imaging, or other tests to make a diagnosis.

Treatment of malabsorption syndromes depends on the cause.


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.