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

O30 Multiple gestation

All 88 codes in the O30 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

88

Can lead a claim

3

Cannot lead a claim

85

What CMS assigns to O30

3 of the 88 codes group to MMTA - Other; 85 are assigned no clinical group. None of the 88 is assigned a comorbidity subgroup. 3 of the 88 can lead a claim.

Every code in O30

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

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
O30.0 Twin pregnancy
O30.00 Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs
O30.001Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, first trimesterCMS: Twin preg, unsp num plcnta & amnio sacs, first trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.002Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, second trimesterCMS: Twin preg, unsp num plcnta & amnio sacs, second trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.003Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, third trimesterCMS: Twin preg, unsp num plcnta & amnio sacs, third trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.009Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimesterCMS: Twin pregnancy, unsp num plcnta & amnio sacs, unsp trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.01 Twin pregnancy, monochorionic/monoamniotic
O30.011Twin pregnancy, monochorionic/monoamniotic, first trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.012Twin pregnancy, monochorionic/monoamniotic, second trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.013Twin pregnancy, monochorionic/monoamniotic, third trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.019Twin pregnancy, monochorionic/monoamniotic, unspecified trimesterCMS: Twin pregnancy, monochorionic/monoamniotic, unsp trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.02 Conjoined twin pregnancy
O30.021Conjoined twin pregnancy, first trimesterCan lead a claimANone
O30.022Conjoined twin pregnancy, second trimesterCan lead a claimANone
O30.023Conjoined twin pregnancy, third trimesterCan lead a claimANone
O30.029Conjoined twin pregnancy, unspecified trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.03 Twin pregnancy, monochorionic/diamniotic
O30.031Twin pregnancy, monochorionic/diamniotic, first trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.032Twin pregnancy, monochorionic/diamniotic, second trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.033Twin pregnancy, monochorionic/diamniotic, third trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.039Twin pregnancy, monochorionic/diamniotic, unspecified trimesterCMS: Twin pregnancy, monochorionic/diamniotic, unsp trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.04 Twin pregnancy, dichorionic/diamniotic
O30.041Twin pregnancy, dichorionic/diamniotic, first trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.042Twin pregnancy, dichorionic/diamniotic, second trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.043Twin pregnancy, dichorionic/diamniotic, third trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.049Twin pregnancy, dichorionic/diamniotic, unspecified trimesterCMS: Twin pregnancy, dichorionic/diamniotic, unsp trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.09 Twin pregnancy, unable to determine number of placenta and number of amniotic sacs
O30.091Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, first trimesterCMS: Twin preg, unable to dtrm num plcnta & amnio sacs, first triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.092Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, second trimesterCMS: Twin preg, unable to dtrm num plcnta & amnio sacs, 2nd triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.093Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, third trimesterCMS: Twin preg, unable to dtrm num plcnta & amnio sacs, third triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.099Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified trimesterCMS: Twin preg, unable to dtrm num plcnta & amnio sacs, unsp triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.1 Triplet pregnancy
O30.10 Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs
O30.101Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, first trimesterCMS: Triplet preg, unsp num plcnta & amnio sacs, first trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.102Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, second trimesterCMS: Triplet preg, unsp num plcnta & amnio sacs, second trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.103Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, third trimesterCMS: Triplet preg, unsp num plcnta & amnio sacs, third trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.109Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimesterCMS: Triplet preg, unsp num plcnta & amnio sacs, unsp trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.11 Triplet pregnancy with two or more monochorionic fetuses
O30.111Triplet pregnancy with two or more monochorionic fetuses, first trimesterCMS: Triplet preg w two or more monochorionic fetuses, first triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.112Triplet pregnancy with two or more monochorionic fetuses, second trimesterCMS: Triplet preg w two or more monochorionic fetuses, second triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.113Triplet pregnancy with two or more monochorionic fetuses, third trimesterCMS: Triplet preg w two or more monochorionic fetuses, third triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.119Triplet pregnancy with two or more monochorionic fetuses, unspecified trimesterCMS: Triplet preg w two or more monochorionic fetuses, unsp triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.12 Triplet pregnancy with two or more monoamniotic fetuses
O30.121Triplet pregnancy with two or more monoamniotic fetuses, first trimesterCMS: Triplet preg w two or more monoamnio fetuses, first triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.122Triplet pregnancy with two or more monoamniotic fetuses, second trimesterCMS: Triplet preg w two or more monoamnio fetuses, second triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.123Triplet pregnancy with two or more monoamniotic fetuses, third trimesterCMS: Triplet preg w two or more monoamnio fetuses, third triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.129Triplet pregnancy with two or more monoamniotic fetuses, unspecified trimesterCMS: Triplet preg w two or more monoamnio fetuses, unsp trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.13 Triplet pregnancy, trichorionic/triamniotic
O30.131Triplet pregnancy, trichorionic/triamniotic, first trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.132Triplet pregnancy, trichorionic/triamniotic, second trimesterCMS: Triplet preg, trichorionic/triamniotic, second trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.133Triplet pregnancy, trichorionic/triamniotic, third trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.139Triplet pregnancy, trichorionic/triamniotic, unspecified trimesterCMS: Triplet pregnancy, trichorionic/triamniotic, unsp trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.19 Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs
O30.191Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, first trimesterCMS: Trp preg, unable to dtrm num plcnta & amnio sacs, first triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.192Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, second trimesterCMS: Trp preg, unable to dtrm num plcnta & amnio sacs, second triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.193Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, third trimesterCMS: Trp preg, unable to dtrm num plcnta & amnio sacs, third triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.199Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified trimesterCMS: Trp preg, unable to dtrm num plcnta & amnio sacs, unsp triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.2 Quadruplet pregnancy
O30.20 Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs
O30.201Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, first trimesterCMS: Quad preg, unsp num plcnta & amnio sacs, first trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.202Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, second trimesterCMS: Quad preg, unsp num plcnta & amnio sacs, second trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.203Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, third trimesterCMS: Quad preg, unsp num plcnta & amnio sacs, third trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.209Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimesterCMS: Quad pregnancy, unsp num plcnta & amnio sacs, unsp trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.21 Quadruplet pregnancy with two or more monochorionic fetuses
O30.211Quadruplet pregnancy with two or more monochorionic fetuses, first trimesterCMS: Quad preg w two or more monochorionic fetuses, first triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.212Quadruplet pregnancy with two or more monochorionic fetuses, second trimesterCMS: Quad preg w two or more monochorionic fetuses, second triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.213Quadruplet pregnancy with two or more monochorionic fetuses, third trimesterCMS: Quad preg w two or more monochorionic fetuses, third triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.219Quadruplet pregnancy with two or more monochorionic fetuses, unspecified trimesterCMS: Quad preg w two or more monochorionic fetuses, unsp triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.22 Quadruplet pregnancy with two or more monoamniotic fetuses
O30.221Quadruplet pregnancy with two or more monoamniotic fetuses, first trimesterCMS: Quad preg w two or more monoamnio fetuses, first trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.222Quadruplet pregnancy with two or more monoamniotic fetuses, second trimesterCMS: Quad preg w two or more monoamnio fetuses, second trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.223Quadruplet pregnancy with two or more monoamniotic fetuses, third trimesterCMS: Quad preg w two or more monoamnio fetuses, third trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.229Quadruplet pregnancy with two or more monoamniotic fetuses, unspecified trimesterCMS: Quad preg w two or more monoamnio fetuses, unsp trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.23 Quadruplet pregnancy, quadrachorionic/quadra-amniotic
O30.231Quadruplet pregnancy, quadrachorionic/quadra-amniotic, first trimesterCMS: Quad preg, quadrachorionic/quadra-amniotic, first trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.232Quadruplet pregnancy, quadrachorionic/quadra-amniotic, second trimesterCMS: Quad preg, quadrachorionic/quadra-amniotic, second trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.233Quadruplet pregnancy, quadrachorionic/quadra-amniotic, third trimesterCMS: Quad preg, quadrachorionic/quadra-amniotic, third trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.239Quadruplet pregnancy, quadrachorionic/quadra-amniotic, unspecified trimesterCMS: Quad preg, quadrachorionic/quadra-amniotic, unsp trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.29 Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs
O30.291Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, first trimesterCMS: Quad preg, unable to dtrm num plcnta & amnio sacs, first triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.292Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, second trimesterCMS: Quad preg, unable to dtrm num plcnta & amnio sacs, 2nd triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.293Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, third trimesterCMS: Quad preg, unable to dtrm num plcnta & amnio sacs, third triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.299Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified trimesterCMS: Quad preg, unable to dtrm num plcnta & amnio sacs, unsp triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.8 Other specified multiple gestation
O30.80 Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs
O30.801Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, first trimesterCMS: Oth multiple gest, unsp num plcnta & amnio sacs, first triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.802Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, second trimesterCMS: Oth multiple gest, unsp num plcnta & amnio sacs, second triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.803Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, third trimesterCMS: Oth multiple gest, unsp num plcnta & amnio sacs, third triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.809Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimesterCMS: Oth multiple gest, unsp num plcnta & amnio sacs, unsp triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.81 Other specified multiple gestation with two or more monochorionic fetuses
O30.811Other specified multiple gestation with two or more monochorionic fetuses, first trimesterCMS: Oth mult gest w two or more monochorionic fetuses, first triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.812Other specified multiple gestation with two or more monochorionic fetuses, second trimesterCMS: Oth mult gest w two or more monochorionic fetuses, 2nd triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.813Other specified multiple gestation with two or more monochorionic fetuses, third trimesterCMS: Oth mult gest w two or more monochorionic fetuses, third triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.819Other specified multiple gestation with two or more monochorionic fetuses, unspecified trimesterCMS: Oth mult gest w two or more monochorionic fetuses, unsp triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.82 Other specified multiple gestation with two or more monoamniotic fetuses
O30.821Other specified multiple gestation with two or more monoamniotic fetuses, first trimesterCMS: Oth multiple gest w two or more monoamnio fetuses, first triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.822Other specified multiple gestation with two or more monoamniotic fetuses, second trimesterCMS: Oth mult gest w two or more monoamnio fetuses, second triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.823Other specified multiple gestation with two or more monoamniotic fetuses, third trimesterCMS: Oth multiple gest w two or more monoamnio fetuses, third triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.829Other specified multiple gestation with two or more monoamniotic fetuses, unspecified trimesterCMS: Oth multiple gest w two or more monoamnio fetuses, unsp triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.83 Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses
O30.831Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, first trimesterCMS: Oth mult gest, num chorions & amnions = num ftses, 1st triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.832Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, second trimesterCMS: Oth mult gest, num chorions & amnions = num ftses, 2nd triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.833Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, third trimesterCMS: Oth mult gest, num chorions & amnions = num ftses, 3rd triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.839Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, unspecified trimesterCMS: Oth mult gest, num chorions & amnions = num ftses, unsp triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.89 Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs
O30.891Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, first trimesterCMS: Oth mult gest, unab to dtrm num plcnta & amnio sacs, 1st triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.892Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, second trimesterCMS: Oth mult gest, unab to dtrm num plcnta & amnio sacs, 2nd triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.893Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, third trimesterCMS: Oth mult gest, unab to dtrm num plcnta & amnio sacs, 3rd triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.899Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, unspecified trimesterCMS: Oth mult gest,unab to dtrm num plcnta & amnio sacs, unsp triCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.9 Multiple gestation, unspecified
O30.90Multiple gestation, unspecified, unspecified trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.91Multiple gestation, unspecified, first trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.92Multiple gestation, unspecified, second trimesterCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
O30.93Multiple gestation, unspecified, third trimesterCannot 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.

The monthly home health regs digest

What CMS changed, what's due next, and what to do about it — one email a month, no fluff. Read the first issue