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O86.13 ICD-10-CM Code: Vaginitis following delivery

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Coding at a Glance

Tabular directives
4 Excludes2 · 1 use-additional code

Inpatient Payment Groups (MS-DRG)

Potential MS-DRG participation — not a DRG assignment.

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43, Appendix B.

  • MS-DRG 769 — POSTPARTUM AND POST ABORTION DIAGNOSES WITH O.R. PROCEDURES (MDC 14)
  • MS-DRG 776 — POSTPARTUM AND POST ABORTION DIAGNOSES WITHOUT O.R. PROCEDURES (MDC 14)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for O86.13 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2026Effective: October 1, 2025

Notes without a marker are published on O86.13 itself; “inherited from” names the category or block whose note applies here.

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

Use Additional Code

Supplementary codes the tabular list directs you to add.

  • Use additional code (B95-B97), to identify infectious agent

Source: inherited from O86

Coder workflow for O86.13

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

Before you code O86.13

  1. 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 →

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).
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).
The conditions the Use Additional Code note names
Reported with this code when documented; a conditional instruction (“if applicable”, “if known”) applies only when the record supports it.

Official instructions as workflow

  • Excludes2 — not part of O86.13(4 notes)

    Coding workflow: The conditions named in this note are not included in O86.13. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

    CompareO75.3, A34, F53, M83.0

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

  • Use Additional Code — after identifying O86.13(1 note)

    Coding workflow: Check whether the documentation supports the additional code(s) the note names, and report them with O86.13 when it does. Where the instruction is conditional (“if applicable”, “if known”), it applies only when the record documents the condition.

    See the official tabular notes · Guidelines I.A.13

Coding decision scenarios

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

Documentation: A condition the Use Additional Code note names is documented.

Coding question: Is a second code reported with O86.13?

Path: Review the Use Additional Code note and the code it names.

Reason: The additional code is reported when the record documents the condition; a conditional instruction applies only when its condition is met (Guidelines I.A.13).

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.

Code Overview

Vaginitis following delivery is a billable ICD-10-CM diagnosis code (O86.13).

MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

Indexed Clinical Terms (10)

Official source data — entries quoted as published, in the Index’s own lookup phrasing

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code. These are alphabetic-index entries shown as the Index writes them — lookup phrasing, not necessarily the wording of a final diagnosis.

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 O86.13 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 9 Excludes1 notes: N70 — Salpingitis and oophoritis (via O86.-), N70-N77 — Inflammatory diseases of female pelvic organs (N70-N77) (via O86.-), N71 — Inflammatory disease of uterus, except cervix (via O86.-), N72 — Inflammatory disease of cervix uteri (via O86.-), N73 — Other female pelvic inflammatory diseases (via O86.-), N74 — Female pelvic inflammatory disorders in diseases classified elsewhere (via O86.-), N75 — Diseases of Bartholin's gland (via O86.-), N76 — Other inflammation of vagina and vulva (via O86.-), N77 — Vulvovaginal ulceration and inflammation in diseases classified elsewhere (via O86.-).

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

Referenced by 4 Excludes2 notes: O75 — Other complications of labor and delivery, not elsewhere classified (via O86.-), O85 — Puerperal sepsis (via O86.1.-), O98 — Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium (via O86.-), O99.8 — Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium.

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.

FY2026 MS-DRG: 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 263 clinically related codes on its CMS exclusion list.

Named in the grouper logic of 2 MS-DRGs: DRG 769 (MDC 14), DRG 776 (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):PRG027 — Complications specified during the puerperium (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.

O35.7XX3 — Maternal care for (suspected) damage to fetus by other medical procedures, fetus 3, O35.7XX4 — Maternal care for (suspected) damage to fetus by other medical procedures, fetus 4, O35.7XX5 — Maternal care for (suspected) damage to fetus by other medical procedures, fetus 5, O35.7XX9 — Maternal care for (suspected) damage to fetus by other medical procedures, other fetus, O75.4 — Other complications of obstetric surgery and procedures, O75.81 — Maternal exhaustion complicating labor and delivery, O75.89 — Other specified complications of labor and delivery, O75.9 — Complication of labor and delivery, unspecified, O80 — Encounter for full-term uncomplicated delivery, O86.11 — Cervicitis following delivery, O86.19 — Other infection of genital tract following delivery, O86.20 — Urinary tract infection following delivery, unspecified, O86.21 — Infection of kidney following delivery, O86.22 — Infection of bladder following delivery, O86.29 — Other urinary tract infection following delivery, O90.89 — Other complications of the puerperium, not elsewhere classified, O99.111 — Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, first trimester, O99.112 — Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, second trimester, O99.113 — Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, third trimester, O99.119 — Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, unspecified trimester, +242 more

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Complications specified during the puerperium).

O26.63 — Liver and biliary tract disorders in the puerperium, O26.73 — Subluxation of symphysis (pubis) in the puerperium, O71.2 — Postpartum inversion of uterus, O72.0 — Third-stage hemorrhage, O72.1 — Other immediate postpartum hemorrhage, O72.2 — Delayed and secondary postpartum hemorrhage, O72.3 — Postpartum coagulation defects, O85 — Puerperal sepsis, O86.11 — Cervicitis following delivery, O86.12 — Endometritis following delivery, O86.19 — Other infection of genital tract following delivery, O86.20 — Urinary tract infection following delivery, unspecified, O86.21 — Infection of kidney following delivery, O86.22 — Infection of bladder following delivery, O86.29 — Other urinary tract infection following delivery, O86.4 — Pyrexia of unknown origin following delivery, O86.81 — Puerperal septic thrombophlebitis, O86.89 — Other specified puerperal infections, O87.0 — Superficial thrombophlebitis in the puerperium, O87.1 — Deep phlebothrombosis in the puerperium, +113 more

Same Index main term, other category

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

O24.83 — Other pre-existing diabetes mellitus in the puerperium (diabetes, pre-existing, specified NEC), O24.93 — Unspecified diabetes mellitus in the puerperium (diabetes), O25.3 — Malnutrition in the puerperium (malnutrition), O26.63 — Liver and biliary tract disorders in the puerperium (necrosis, liver), O26.73 — Subluxation of symphysis (pubis) in the puerperium (subluxation of symphysis), O72.0 — Third-stage hemorrhage (retention, placenta), O72.1 — Other immediate postpartum hemorrhage (hemorrhage), O72.2 — Delayed and secondary postpartum hemorrhage (hemorrhage, uterine, delayed), O72.3 — Postpartum coagulation defects (blood dyscrasia), O85 — Puerperal sepsis (pyemia), O87.0 — Superficial thrombophlebitis in the puerperium (phlebitis), O87.1 — Deep phlebothrombosis in the puerperium (milk leg), O87.2 — Hemorrhoids in the puerperium (hemorrhoids), O87.4 — Varicose veins of lower extremity in the puerperium (varicose veins), O87.8 — Other venous complications in the puerperium (varicose veins, vulva or perineum), O87.9 — Venous complication in the puerperium, unspecified (venous), O89.8 — Other complications of anesthesia during the puerperium (anesthetic death), O90.0 — Disruption of cesarean delivery wound (disruption, cesarean wound), O90.1 — Disruption of perineal obstetric wound (secondary perineal tear), O90.3 — Peripartum cardiomyopathy (cardiomyopathy), +85 more

Contextual Map

Every relationship of O86.13 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 O86.13 with these 12 related codes in Claim Check

Hierarchy

Referenced by Excludes1 notes (9)

Referenced by Excludes2 notes

Clinical classification (CCSR)

MS-DRG Grouper

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

Index entries (10)

  • Puerperal, puerperium (complicated by, complications), abscess, vagina (wall)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Puerperal, puerperium (complicated by, complications), abscess, vaginorectal[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Puerperal, puerperium (complicated by, complications), abscess, vulvovaginal gland[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Puerperal, puerperium (complicated by, complications), infection, vagina[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Puerperal, puerperium (complicated by, complications), metrovaginitis[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Puerperal, puerperium (complicated by, complications), paravaginitis[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Puerperal, puerperium (complicated by, complications), perivaginitis[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Puerperal, puerperium (complicated by, complications), vaginitis[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • and 2 more

Nearest codes (21)

Change history

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

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
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

Cite this page

Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.

MedCoder.ai. "O86.13 — Vaginitis following delivery." ICD-10-CM FY2026. https://medcoder.ai/icd10/code/o86.13-vaginitis-following-delivery

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Vaginitis following delivery

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027 (effective October 1, 2026), and none are recorded for this code. Note changes are tracked from FY2027 only.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to O86.13 in its code family, with their registry titles.

View all codes in the O86 family