- K31.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2024 edition of ICD-10-CM K31.9 became effective on October 1, 2022.
- This is the American ICD-10-CM version of K31.9 – other international versions of ICD-10 K31.9 may differ.
ICD-10-CM K31.9 is grouped within Diagnostic Related Group(s):
- 391 Esophagitis, gastroenteritis and miscellaneous digestive disorders with mcc
- 392 Esophagitis, gastroenteritis and miscellaneous digestive disorders without mcc
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2016 (effective 10/1/2015): No change
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2024 (effective 10/1/2022): No change
Diagnosis Index entries containing back-references to K31.9:
- duodenum > Disease, diseased
- stomach > Disease, diseased
- gastric (functional) > Disorder (of)
- stomach (functional) > Disturbance (s)
- pylorus > Dysfunction
- cardia > Lesion (s) (nontraumatic)
- duodenum > Lesion (s) (nontraumatic)
- gastric > Lesion (s) (nontraumatic)
- gastroduodenal > Lesion (s) (nontraumatic)
- pylorus > Lesion (s) (nontraumatic)
- stomach > Lesion (s) (nontraumatic)