October 1 update. Our PDGM and ICD-10 tools now use the FY2027 code set: 190 codes added, 30 deleted, and no existing code changed clinical group.

See what changed

ICD-10 · PDGM grouping

Z13 Encounter for screening for other diseases and disorders

All 30 codes in the Z13 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.

ICD-10-CM FY2027 · CMS grouper v07.2.26

Codes in family

30

Can lead a claim

0

Cannot lead a claim

30

What CMS assigns to Z13

None of the 30 codes is assigned a clinical group. None of the 30 is assigned a comorbidity subgroup. None can lead a claim.

Every code in Z13

Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
Z13.0Encounter for screening for diseases of the blood and blood-forming organs and certain disorders involving the immune mechanismCMS: Encntr screen for dis of the bld/bld-form org/immun mechnsmCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.1Encounter for screening for diabetes mellitusCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.2 Encounter for screening for nutritional, metabolic and other endocrine disorders
Z13.21Encounter for screening for nutritional disorderCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.22 Encounter for screening for metabolic disorder
Z13.220Encounter for screening for lipoid disordersCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.228Encounter for screening for other metabolic disordersCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.29Encounter for screening for other suspected endocrine disorderCMS: Encounter for screening for oth suspected endocrine disorderCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.3 Encounter for screening examination for mental health and behavioral disorders
Z13.30Encounter for screening examination for mental health and behavioral disorders, unspecifiedCMS: Encntr screen exam for mental hlth and behavrl disord, unspCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.31Encounter for screening for depressionCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.32Encounter for screening for maternal depressionCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.39Encounter for screening examination for other mental health and behavioral disordersCMS: Encntr screen exam for other mental hlth and behavrl disordCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.4 Encounter for screening for certain developmental disorders in childhood
Z13.40Encounter for screening for unspecified developmental delaysCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.41Encounter for autism screeningCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.42Encounter for screening for global developmental delays (milestones)CMS: Encntr screen for global developmental delays (milestones)Cannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.49Encounter for screening for other developmental delaysCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.5Encounter for screening for eye and ear disordersCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.6Encounter for screening for cardiovascular disordersCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.7 Encounter for screening for genetic and chromosomal anomalies
Z13.71Encounter for nonprocreative screening for genetic disease carrier statusCMS: Encntr for nonprocreat screen for genetic dis carrier statusCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.79Encounter for other screening for genetic and chromosomal anomaliesCMS: Encntr for oth screening for genetic and chromsoml anomaliesCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.8 Encounter for screening for other specified diseases and disorders
Z13.81 Encounter for screening for digestive system disorders
Z13.810Encounter for screening for upper gastrointestinal disorderCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.811Encounter for screening for lower gastrointestinal disorderCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.818Encounter for screening for other digestive system disordersCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.82 Encounter for screening for musculoskeletal disorder
Z13.820Encounter for screening for osteoporosisCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.828Encounter for screening for other musculoskeletal disorderCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.83Encounter for screening for respiratory disorder NECCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.84Encounter for screening for dental disordersCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.85 Encounter for screening for nervous system disorders
Z13.850Encounter for screening for traumatic brain injuryCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.858Encounter for screening for other nervous system disordersCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.88Encounter for screening for disorder due to exposure to contaminantsCMS: Encntr screen for disorder due to exposure to contaminantsCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.89Encounter for screening for other disorderCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
Z13.9Encounter for screening, unspecifiedCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone

Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.

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