Z13.818 Encounter for screening for other digestive system disorders

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Applies from Z13 Encounter for screening for other diseases and disorders

Applicable to

• Screening is the testing for disease or disease precursors in asymptomatic individuals so that early detection and treatment can be provided for those who test positive for the disease.

Excludes1 (never code together)

• encounter for diagnostic examination-code to sign or symptom

Applies from Z13.8 Encounter for screening for other specified diseases and disorders

Excludes2 (not included here)

• screening for malignant neoplasms (Z12.-)

MS-DRG index

Defines the logic of DRG(s) 951 in MDC 23.

Approximate ICD-9-CM (GEMs)

• V82.89 Special screening for other specified conditions (approximate)

Medicare Code Edits (MCE v43.1 (April 2026))

• Unacceptable principal diagnosis: These codes describe a circumstance which influences care but is not a current illness or injury, or capture only an underlying condition, and are unacceptable as principal diagnosis.

Code annotations containing back-references to Z13.818

Back-references to Z13

• Type 2 Excludes: Z00 Encounter for general examination without complaint, suspected or reported diagnosis ("special screening examinations (Z11-Z13)")
• Type 2 Excludes: Z01 Encounter for other special examination without complaint, suspected or reported diagnosis ("screening examinations (Z11-Z13)")

Diagnosis Index entries for Z13.818

• Screening (for) › disease or disorder › digestive tract NEC
• Screening (for) › gastrointestinal condition

Nearby codes

• Z13.79 Encounter for other screening for genetic and chromosomal anomalies
• Z13.8 Encounter for screening for other specified diseases and disorders
• Z13.81 Encounter for screening for digestive system disorders
• Z13.810 Encounter for screening for upper gastrointestinal disorder
• Z13.811 Encounter for screening for lower gastrointestinal disorder
• Z13.818 Encounter for screening for other digestive system disorders (this code)
• Z13.82 Encounter for screening for musculoskeletal disorder
• Z13.820 Encounter for screening for osteoporosis
• Z13.828 Encounter for screening for other musculoskeletal disorder
• Z13.83 Encounter for screening for respiratory disorder NEC
• Z13.84 Encounter for screening for dental disorders