All ICD10 Codes
Chapter 21

Z00–Z99: Factors Influencing Health Status and Contact with Health Services

Factors Influencing Health Status and Contact with Health Services diagnostic classification updated for 2026.

All CodesBillable Only
Internal Codes
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  • Z37.9—

    Outcome of delivery, unspecified

  • Z38—

    Liveborn infants according to place of birth and type of delivery

  • Z38.0—

    Single liveborn infant, born in hospital

  • Z38.00—

    Single liveborn infant, delivered vaginally

  • Z38.01—

    Single liveborn infant, delivered by cesarean

  • Z38.1—

    Single liveborn infant, born outside hospital

  • Z38.2—

    Single liveborn infant, unspecified as to place of birth

  • Z38.3—

    Twin liveborn infant, born in hospital

  • Z38.30—

    Twin liveborn infant, delivered vaginally

  • Z38.31—

    Twin liveborn infant, delivered by cesarean

  • Z38.4—

    Twin liveborn infant, born outside hospital

  • Z38.5—

    Twin liveborn infant, unspecified as to place of birth

  • Z38.6—

    Other multiple liveborn infant, born in hospital

  • Z38.61—

    Triplet liveborn infant, delivered vaginally

  • Z38.62—

    Triplet liveborn infant, delivered by cesarean

  • Z38.63—

    Quadruplet liveborn infant, delivered vaginally

  • Z38.64—

    Quadruplet liveborn infant, delivered by cesarean

  • Z38.65—

    Quintuplet liveborn infant, delivered vaginally

  • Z38.66—

    Quintuplet liveborn infant, delivered by cesarean

  • Z38.68—

    Other multiple liveborn infant, delivered vaginally

  • Z38.69—

    Other multiple liveborn infant, delivered by cesarean

  • Z38.7—

    Other multiple liveborn infant, born outside hospital

  • Z38.8—

    Other multiple liveborn infant, unspecified as to place of birth

  • Z39—

    Encounter for maternal postpartum care and examination

  • Z39.0—

    Encounter for care and examination of mother immediately after delivery

  • Z39.1—

    Encounter for care and examination of lactating mother

  • Z39.2—

    Encounter for routine postpartum follow-up

  • Z3A—

    Weeks of gestation

  • Z3A.0—

    Weeks of gestation of pregnancy, unspecified or less than 10 weeks

  • Z3A.00—

    Weeks of gestation of pregnancy not specified

  • Z3A.01—

    Less than 8 weeks gestation of pregnancy

  • Z3A.08—

    8 weeks gestation of pregnancy

  • Z3A.09—

    9 weeks gestation of pregnancy

  • Z3A.1—

    Weeks of gestation of pregnancy, weeks 10-19

  • Z3A.10—

    10 weeks gestation of pregnancy

  • Z3A.11—

    11 weeks gestation of pregnancy

  • Z3A.12—

    12 weeks gestation of pregnancy

  • Z3A.13—

    13 weeks gestation of pregnancy

  • Z3A.14—

    14 weeks gestation of pregnancy

  • Z3A.15—

    15 weeks gestation of pregnancy

  • Z3A.16—

    16 weeks gestation of pregnancy

  • Z3A.17—

    17 weeks gestation of pregnancy

  • Z3A.18—

    18 weeks gestation of pregnancy

  • Z3A.19—

    19 weeks gestation of pregnancy

  • Z3A.2—

    Weeks of gestation of pregnancy, weeks 20-29

  • Z3A.20—

    20 weeks gestation of pregnancy

  • Z3A.21—

    21 weeks gestation of pregnancy

  • Z3A.22—

    22 weeks gestation of pregnancy

  • Z3A.23—

    23 weeks gestation of pregnancy

  • Z3A.24—

    24 weeks gestation of pregnancy

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