Z13.79 Encounter for other screening for genetic and chromosomal anomalies

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 Z13.7 Encounter for screening for genetic and chromosomal anomalies

Excludes1 (never code together)

• genetic testing for procreative management (Z31.4-)

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• V82.79 Other genetic screening (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 Z13.79

Back-references to Z13.7

• Type 1 Excludes: Z31.43 Encounter for genetic testing of female for procreative management ("nonprocreative genetic testing (Z13.7-)")
• Type 1 Excludes: Z31.44 Encounter for genetic testing of male for procreative management ("nonprocreative genetic testing (Z13.7-)")

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 Z13.79

• Screening (for) › chromosomal abnormalities (nonprocreative) NEC
• Screening (for) › genetic (nonprocreative) - for procreative management › specified NEC (nonprocreative)

Nearby codes

• Z13.49 Encounter for screening for other developmental delays
• Z13.5 Encounter for screening for eye and ear disorders
• Z13.6 Encounter for screening for cardiovascular disorders
• Z13.7 Encounter for screening for genetic and chromosomal anomalies
• Z13.71 Encounter for nonprocreative screening for genetic disease carrier status
• Z13.79 Encounter for other screening for genetic and chromosomal anomalies (this code)
• 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