ICD-10 Code
International Classification of Diseases, 10th Revision
Oct 19, 2017

See: Gastro-esophageal reflux disease

K21 is NOT a complete or valid ICD 10 diagnosis code.

You should code each health care encounter to the level of certainty known for that encounter. When sufficient clinical information is not known or available to assign a more specific code, it is acceptable to report the appropriate unspecified code.

See below for more specifc codes relating to
Gastro-esophageal reflux disease
Excludes1
  • newborn esophageal reflux (P78.83)

More specific codes for Gastro-esophageal reflux disease

  • K21.0 - Gastro-esophageal reflux disease with esophagitis
  • K21.9 - Gastro-esophageal reflux disease without esophagitis
See also ICD 10 code for
Back to K21
See the 2017 ICD-10-CM Coding Guidelines.

Questions related to K21 Gastro-esophageal reflux disease

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.