O36.0111 ICD-10-CM Code: Maternal care for anti-D [Rh] antibodies, first trimester, fetus 1

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for O36.0111 in the official ICD-10-CM tabular list, quoted as published.

Notes without a marker are published on O36.0111 itself; “inherited from” names the category or block whose note applies here.

7th Character Guide

"One of the following 7th characters is to be assigned to each code under category O36. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O36 that has a 7th character of 1 through 9."

• 0 — not applicable or unspecified
• 1 — fetus 1 (this page’s code)
• 2 — fetus 2
• 3 — fetus 3
• 4 — fetus 4
• 5 — fetus 5
• 9 — other fetus

Variant codes in this family

O36.0110, O36.0111, O36.0112, O36.0113, O36.0114, O36.0115, O36.0119

Character meanings are CMS's official 7th-character extensions for this family, as carried in each variant code's official description; variant codes are registry rows. The explanation of how the encounter character is assigned is MedCoder editorial, distinct from the official content above it.

Coder workflow for O36.0111

MedCoder structured workflow — derived from this code’s own official record

Before you code O36.0111

1. A 7th character is required in this family. Confirm the documentation supports the character assigned — its meaning in this family is defined in the official instruction. This page’s code carries “1”. The official 7th-character definitions for this family are quoted in the guide.

   See the 7th Character Guide

2. Confirm the condition is documented as complicating the pregnancy, childbirth, or the puerperium, and check the trimester where the code carries one and the fetus character where the category requires it. Chapter 15 codes belong on the maternal record only and take sequencing priority over codes from other chapters. It is the provider’s responsibility to state that a condition is not affecting the pregnancy; the trimester is assigned from the documentation (Guidelines I.C.15.a, I.C.15.a.1, I.C.15.a.3).

   Guide: How to choose an ICD-10-CM code →

3. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with O36.0111. Excludes1 conditions are not reported together with this code unless the record shows they are unrelated (Guidelines I.A.12.a).

   See the official tabular notes

Choose the right path

1. Does the documentation support a condition named in O36.0111’s Excludes1 note?
   Yes → Do not simply proceed: review the excluded code. Both are reported only when the record shows the two conditions are unrelated.
   No → Continue.

   ReviewZ03.7, O43.0

2. Does the documentation support one of this family’s 7th-character values?
   Yes → Assign the matching 7th character; the variant codes are in the 7th Character Guide.
   No → The code is invalid without its 7th character — query for the missing element.

Consider O36.0111. Then confirm the code is valid for the date of service in the Verify section.

Documentation check

The provider’s diagnostic statement

Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).

7th-character basis

The documented element this family’s 7th character records (see the official definitions in the 7th Character Guide).

Trimester

Assigned from the documented trimester at the encounter, or the trimester in which the condition developed for inpatient stays (Guidelines I.C.15.a.3).

Fetus affected

For multiple gestations, the fetus the condition affects, as documented.

Official instructions as workflow

• Excludes1 — check before selecting O36.0111(2 notes)

  Coding workflow: If the documentation supports a condition named in this note, do not simply proceed with O36.0111: the two are not reported together. The one exception is when the record shows the two conditions are unrelated to each other.

  CompareZ03.7, O43.0

  See the official tabular notes · Guidelines I.A.12.a

• Excludes2 — not part of O36.0111(1 note)

  Coding workflow: The conditions named in this note are not included in O36.0111. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

  CompareO77

  See the official tabular notes · Guidelines I.A.12.b

Coding decision scenarios

Pattern scenarios for this code’s structure — decision rules, not clinical cases

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Official Coding Guidelines

Official source data — quoted verbatim from the CMS/NCHS Official Guidelines

Official source data — quoted verbatim from the CMS/NCHS Official Guidelines

Verbatim excerpts from the ICD-10-CM Official Guidelines for Coding and Reporting (CMS/NCHS) that govern this code.

Don’t confuse O36.0111 with…

MedCoder analysis — pairs from this code’s official notes, distinctions written by MedCoder

The codes most likely to be picked instead of O36.0111 — named in its own official notes, or sharing its laterality or encounter family — with what separates them and which documentation moves the case. Each links to the full comparison.

• Z03.7— Excludes1 conflict (Conflict)

  Not coded here — these two are mutually exclusive.

  Not reported together with this code, except where the two conditions are documented as unrelated.

  What moves you there: Documentation of encounter for suspected maternal and fetal conditions ruled out moves the case to Z03.7; the two are not reported together unless documented as unrelated.

  Full comparison: O36.0111 vs Z03.7 →

• O43.0— Excludes1 conflict (Conflict)

  Not coded here — these two are mutually exclusive.

  Not reported together with this code, except where the two conditions are documented as unrelated.

  What moves you there: Documentation of placental transfusion syndromes moves the case to O43.0; the two are not reported together unless documented as unrelated.

  Full comparison: O36.0111 vs O43.0 →

• O36.0110— Specificity relationship (Review)

  Overlapping diagnoses in the same category.

  Overlapping codes in the same category — the documentation decides which is the more specific fit.

  What moves you there: A record that documents no more than “Maternal care for anti-D [Rh] antibodies, first trimester, not applicable or unspecified” takes O36.0110; specificity in the record moves it back here.

  Full comparison: O36.0111 vs O36.0110 →

• O36.0112— Encounter relationship (Review)

  Same underlying diagnosis, different encounter phase.

  The same diagnosis at a different phase of care; one encounter takes one 7th character.

  What moves you there: Documentation of a fetus 2 moves the case to O36.0112.

  Full comparison: O36.0111 vs O36.0112 →

• O36.0113— Encounter relationship (Review)

  Same underlying diagnosis, different encounter phase.

  The same diagnosis at a different phase of care; one encounter takes one 7th character.

  What moves you there: Documentation of a fetus 3 moves the case to O36.0113.

  Full comparison: O36.0111 vs O36.0113 →

• O77— Excludes2 relationship (Informational)

  Distinct conditions — both may be reported.

  A distinct condition — both may be reported when both are documented.

  What moves you there: Documentation of labor and delivery complicated by fetal stress adds O77; it is not part of this code and both may be reported when both are documented.

  Full comparison: O36.0111 vs O77 →

Relationships are read from this code's own official notes, its laterality siblings and its encounter family; the wording of each distinction is MedCoder editorial, and the documentation named in each “what moves you there” line is the official note phrase or sibling title itself. Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a.

Decision Points

The directives on this code's own record, as a pre-claim checklist.

1. A 7th character applies in this family. Confirm the documented encounter matches the character assigned. See the official 7th-character definitions and this code’s variants
2. 2 Excludes1 entries — codes named there are generally not reported together with this code (Guidelines I.A.12.a). See the Excludes1 notes
3. 1 Excludes2 entry — those conditions are not part of this code and may be reported additionally when documented. See the Excludes2 notes

Checklist rows are derived from this code's own official directives; the wording of each check is MedCoder editorial. The official notes themselves are in the sections each row links to.

Verify Before Coding

• Age-restricted: the Medicare Code Editor lists this as a maternity (age 9-64) diagnosis; other ages are presumed incorrect.
• CC as a secondary diagnosis (FY2026). Can raise the stay's MS-DRG severity tier.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

MedCoder structured relationships — computed from published CMS and AHRQ datasets

Other codes that name O36.0111 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

Referenced by 3 Excludes1 notes across 3 chapters: O36.2 — Maternal care for hydrops fetalis (via O36.0.-), R76.0 — Raised antibody titer (via O36.-), Z03.7 — Encounter for suspected maternal and fetal conditions ruled out (via O36.-).

These codes’ tabular lists mark this diagnosis as mutually exclusive — not reported together unless the conditions are documented as unrelated.

Referenced by 12 Excludes2 notes: O20 — Hemorrhage in early pregnancy (via O36.-), O20-O29 — Other maternal disorders predominantly related to pregnancy (O20-O29) (via O36.-), O21 — Excessive vomiting in pregnancy (via O36.-), O22 — Venous complications and hemorrhoids in pregnancy (via O36.-), O23 — Infections of genitourinary tract in pregnancy (via O36.-), O24 — Diabetes mellitus in pregnancy, childbirth, and the puerperium (via O36.-), O25 — Malnutrition in pregnancy, childbirth and the puerperium (via O36.-), O26 — Maternal care for other conditions predominantly related to pregnancy (via O36.-), O28 — Abnormal findings on antenatal screening of mother (via O36.-), O29 — Complications of anesthesia during pregnancy (via O36.-), O98 — Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium (via O36.-), O99 — Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium (via O36.-).

These codes’ tabular lists name this diagnosis as distinct — both may be reported when both are documented.

MS-DRG Grouper Relationships (FY2026)

Potential MS-DRG participation — not a DRG assignment.

CC — Complication or Comorbidity. Reported as a secondary diagnosis, this code raises the stay's MS-DRG severity tier — except when the principal diagnosis is one of 42 clinically related codes on its CMS exclusion list.

Named in the grouper logic of 6 MS-DRGs: DRG 817 (MDC 14), DRG 818 (MDC 14), DRG 819 (MDC 14), DRG 831 (MDC 14), DRG 832 (MDC 14), DRG 833 (MDC 14).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Clinical classification (AHRQ CCSR):PRG013 — Maternal care related to fetal conditions (default).

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Related Codes

Same clinical process (MS-DRG)

Acts as CC — raises the severity of other admissions. CMS groups these diagnoses into one MS-DRG principal-diagnosis exclusion process — a CC/MCC on this list never raises severity when the principal diagnosis is also on it.

O36.0110 — Maternal care for anti-D [Rh] antibodies, first trimester, not applicable or unspecified, O36.0112 — Maternal care for anti-D [Rh] antibodies, first trimester, fetus 2, O36.0113 — Maternal care for anti-D [Rh] antibodies, first trimester, fetus 3, O36.0114 — Maternal care for anti-D [Rh] antibodies, first trimester, fetus 4, O36.0115 — Maternal care for anti-D [Rh] antibodies, first trimester, fetus 5, O36.0119 — Maternal care for anti-D [Rh] antibodies, first trimester, other fetus, O36.0120 — Maternal care for anti-D [Rh] antibodies, second trimester, not applicable or unspecified, O36.0121 — Maternal care for anti-D [Rh] antibodies, second trimester, fetus 1, O36.0122 — Maternal care for anti-D [Rh] antibodies, second trimester, fetus 2, O36.0123 — Maternal care for anti-D [Rh] antibodies, second trimester, fetus 3, O36.0124 — Maternal care for anti-D [Rh] antibodies, second trimester, fetus 4, O36.0125 — Maternal care for anti-D [Rh] antibodies, second trimester, fetus 5, O36.0129 — Maternal care for anti-D [Rh] antibodies, second trimester, other fetus, O36.0130 — Maternal care for anti-D [Rh] antibodies, third trimester, not applicable or unspecified, O36.0131 — Maternal care for anti-D [Rh] antibodies, third trimester, fetus 1, O36.0132 — Maternal care for anti-D [Rh] antibodies, third trimester, fetus 2, O36.0133 — Maternal care for anti-D [Rh] antibodies, third trimester, fetus 3, O36.0134 — Maternal care for anti-D [Rh] antibodies, third trimester, fetus 4, O36.0135 — Maternal care for anti-D [Rh] antibodies, third trimester, fetus 5, O36.0139 — Maternal care for anti-D [Rh] antibodies, third trimester, other fetus, +21 more

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Maternal care related to fetal conditions).

+594 more

Same Index main term, other category

The ICD-10-CM Index to Diseases and Injuries files this code under the main terms “Rh”, “Incompatibility”, “Isoimmunization NEC”, …; these codes share that main term but sit in a different category of the Tabular List.

P55.0 — Rh isoimmunization of newborn (hemolytic disease), P55.1 — ABO isoimmunization of newborn (ABO, newborn), P55.8 — Other hemolytic diseases of newborn (blood NEC, newborn), P55.9 — Hemolytic disease of newborn, unspecified (newborn), P56.0 — Hydrops fetalis due to isoimmunization (newborn, with, hydrops fetalis), P57.0 — Kernicterus due to isoimmunization (newborn, with, kernicterus), T80.89 — Other complications following infusion, transfusion and therapeutic injection (blood NEC, infusion or transfusion reaction), Z00.121 — Encounter for routine child health examination with abnormal findings (appropriate for age, child, with abnormal findings), Z00.129 — Encounter for routine child health examination without abnormal findings (appropriate for age, child), Z23 — Encounter for immunization (encounter for), Z28.01 — Immunization not carried out because of acute illness of patient (not done, because, acute illness of patient), Z28.02 — Immunization not carried out because of chronic illness or condition of patient (not done, because, chronic illness of patient), Z28.03 — Immunization not carried out because of immune compromised state of patient (not done, because, immune compromised state of patient), Z28.04 — Immunization not carried out because of patient allergy to vaccine or component (not done, because, allergy to vaccine), Z28.09 — Immunization not carried out because of other contraindication (not done, because, contraindication NEC), Z28.1 — Immunization not carried out because of patient decision for reasons of belief or group pressure (not done, because, group pressure), Z28.20 — Immunization not carried out because of patient decision for unspecified reason (not done, because, unspecified patient reason), Z28.21 — Immunization not carried out because of patient refusal (not done, because, patient refusal), Z28.29 — Immunization not carried out because of patient decision for other reason (not done, because, specified reason NEC, of patient), Z28.311 — Partially vaccinated for COVID-19 (partial, for COVID-19), +7 more

Contextual Map

Every relationship of O36.0111 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run O36.0111 with these 11 related codes in Claim Check

Hierarchy

• O00-O9A — Chapter 15: Pregnancy, Childbirth and the Puerperium (O00-O9A) (O00-O9A)[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• O30-O48 — Maternal care related to the fetus and amniotic cavity and possible delivery problems[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026

Referenced by Excludes1 notes

• O36.2 — Maternal care for hydrops fetalis[Excludes1](via O36.0.-): “hydrops fetalis associated with rhesus isoimmunization (O36.0-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• R76.0 — Raised antibody titer[Excludes1](via O36.-): “isoimmunization in pregnancy (O36.0-O36.1)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• Z03.7 — Encounter for suspected maternal and fetal conditions ruled out[Excludes1](via O36.-): “known or suspected fetal anomalies affecting management of mother, not ruled out (O26.-, O35.-, O36.-, O40.-, O41.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Referenced by Excludes2 notes (12)

• O20 — Hemorrhage in early pregnancy[Excludes2](via O36.-): “maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• O20-O29 — Other maternal disorders predominantly related to pregnancy (O20-O29)[Excludes2](via O36.-): “maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• O21 — Excessive vomiting in pregnancy[Excludes2](via O36.-): “maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• O22 — Venous complications and hemorrhoids in pregnancy[Excludes2](via O36.-): “maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• O23 — Infections of genitourinary tract in pregnancy[Excludes2](via O36.-): “maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• O24 — Diabetes mellitus in pregnancy, childbirth, and the puerperium[Excludes2](via O36.-): “maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• O25 — Malnutrition in pregnancy, childbirth and the puerperium[Excludes2](via O36.-): “maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• O26 — Maternal care for other conditions predominantly related to pregnancy[Excludes2](via O36.-): “maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• and 4 more

Clinical classification (CCSR)

• PRG013 — Maternal care related to fetal conditions[CCSR]— AHRQ CCSR for ICD-10-CM Diagnoses (HCUP)

MS-DRG Grouper

• CC — Complication or Comorbidity [MS-DRG severity]: “As a secondary diagnosis this code can raise the stay's MS-DRG severity tier (CC).”— CMS MS-DRG Definitions Manual (Appendix C) · FY2026
• DRG 817 — OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITH MCC[MS-DRG]: “OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITH MCC (MDC 14)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 818 — OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITH CC[MS-DRG]: “OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITH CC (MDC 14)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 819 — OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITHOUT CC/MCC[MS-DRG]: “OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITHOUT CC/MCC (MDC 14)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 831 — OTHER ANTEPARTUM DIAGNOSES WITHOUT O.R. PROCEDURES WITH MCC[MS-DRG]: “OTHER ANTEPARTUM DIAGNOSES WITHOUT O.R. PROCEDURES WITH MCC (MDC 14)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 832 — OTHER ANTEPARTUM DIAGNOSES WITHOUT O.R. PROCEDURES WITH CC[MS-DRG]: “OTHER ANTEPARTUM DIAGNOSES WITHOUT O.R. PROCEDURES WITH CC (MDC 14)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 833 — OTHER ANTEPARTUM DIAGNOSES WITHOUT O.R. PROCEDURES WITHOUT CC/MCC[MS-DRG]: “OTHER ANTEPARTUM DIAGNOSES WITHOUT O.R. PROCEDURES WITHOUT CC/MCC (MDC 14)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026

MDC crossing

• MDC 14 — Pregnancy, Childbirth and the Puerperium[MDC crossing]: “Pregnancy, Childbirth and the Puerperium — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs. 94 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2026

Nearest codes (40)

• O36 — Maternal care for other fetal problems[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• O36.0 — Maternal care for rhesus isoimmunization[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• O36.01 — Maternal care for anti-D [Rh] antibodies[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• O36.011 — Maternal care for anti-D [Rh] antibodies, first trimester[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• O36.0110 — Maternal care for anti-D [Rh] antibodies, first trimester, not applicable or unspecified[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• O36.0112 — Maternal care for anti-D [Rh] antibodies, first trimester, fetus 2[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• O36.0113 — Maternal care for anti-D [Rh] antibodies, first trimester, fetus 3[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• O36.0114 — Maternal care for anti-D [Rh] antibodies, first trimester, fetus 4[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• and 32 more

Change history

• FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Common coding questions

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data

CMS/CDC ICD-10-CM FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page

Coding guidelines Official source data

ICD-10-CM Official Guidelines for Coding and Reporting (FY2026), quoted by section Release, file and checksum · Publisher’s page

Claim edits Official source data

CMS Definitions of Medicare Code Edits — v43.1 (April 2026) Release, file and checksum · Publisher’s page

Inpatient payment groups Official source data

CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v43 Release, file and checksum · Publisher’s page

Change history and date-of-service validity Official source data

CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page

Comparisons, relationships and the contextual map MedCoder structured relationship

Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears

Summary and FAQ answers MedCoder explanation

Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

Nearest Codes in This Family

Official ICD-10-CM classifications closest to O36.0111 in its code family, with their registry titles.

• O36 — Maternal care for other fetal problems
• O36.0 — Maternal care for rhesus isoimmunization
• O36.01 — Maternal care for anti-D [Rh] antibodies
• O36.011 — Maternal care for anti-D [Rh] antibodies, first trimester
• O36.0110 — Maternal care for anti-D [Rh] antibodies, first trimester, not applicable or unspecified
• O36.0112 — Maternal care for anti-D [Rh] antibodies, first trimester, fetus 2
• O36.0113 — Maternal care for anti-D [Rh] antibodies, first trimester, fetus 3
• O36.0114 — Maternal care for anti-D [Rh] antibodies, first trimester, fetus 4
• O36.0115 — Maternal care for anti-D [Rh] antibodies, first trimester, fetus 5
• O36.0119 — Maternal care for anti-D [Rh] antibodies, first trimester, other fetus

View all codes in the O36 family