Q86.2 ICD-10-CM Code: Dysmorphism due to warfarin

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for Q86.2 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 Q86.2 itself; “inherited from” names the category or block whose note applies here.

Coder workflow for Q86.2

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

Before you code Q86.2

1. Q86.2’s title joins a condition with an associated condition or complication. Confirm each component is documented. Where the classification presumes the link through the “with” convention, only a provider statement that the conditions are unrelated defeats it. A combination code is assigned only when it fully identifies the documented conditions; a required second code for the stage, type or manifestation is still reported when the notes ask for it (Guidelines I.B.9, I.A.15).

   Guide: Combination codes →

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).

The associated condition or complication

Whether the associated condition the title names is documented; the “with” convention presumes some links, and a provider statement that the conditions are unrelated defeats it (Guidelines I.A.15).

Official instructions as workflow

• Excludes2 — not part of Q86.2(2 notes)

  Coding workflow: The conditions named in this note are not included in Q86.2. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

  CompareP04

  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.

Indexed Clinical Terms (2)

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.

• Dysmorphism (due to), warfarin
• Syndrome, malformation, congenital, due to, warfarin

Don’t confuse Q86.2 with…

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

The codes most likely to be picked instead of Q86.2 — 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.

• E00— 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 iodine-deficiency-related hypothyroidism adds E00; it is not part of this code and both may be reported when both are documented.

  Full comparison: Q86.2 vs E00 →

• E02— 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 iodine-deficiency-related hypothyroidism adds E02; it is not part of this code and both may be reported when both are documented.

  Full comparison: Q86.2 vs E02 →

• P04— 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 nonteratogenic effects of substances transmitted via placenta or breast milk adds P04; it is not part of this code and both may be reported when both are documented.

  Full comparison: Q86.2 vs P04 →

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.

Verify Before Coding

• No Medicare Code Editor or MS-DRG Definitions Manual restrictions apply to this code.

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 Q86.2 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 1 Excludes1 note: P04.1 — Newborn affected by other maternal medication.

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

MS-DRG Grouper Relationships (FY2026)

Potential MS-DRG participation — not a DRG assignment.

FY2026 MS-DRG: not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity for that release.

Named in the grouper logic of 1 MS-DRG: DRG 794 (MDC 15).

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

Clinical classification (AHRQ CCSR):MAL010 — Other specified and unspecified congenital anomalies (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 category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Other specified and unspecified congenital anomalies).

Q84.9 — Congenital malformation of integument, unspecified, Q85.1 — Tuberous sclerosis, Q85.8 — Other phakomatoses, not elsewhere classified, Q85.81 — PTEN hamartoma tumor syndrome, Q85.82 — Other Cowden syndrome, Q85.83 — Von Hippel-Lindau syndrome, Q85.89 — Other phakomatoses, not elsewhere classified, Q85.9 — Phakomatosis, unspecified, Q86.0 — Fetal alcohol syndrome (dysmorphic), Q86.1 — Fetal hydantoin syndrome, Q86.8 — Other congenital malformation syndromes due to known exogenous causes, Q87.0 — Congenital malformation syndromes predominantly affecting facial appearance, Q87.1 — Congenital malformation syndromes predominantly associated with short stature, Q87.11 — Prader-Willi syndrome, Q87.19 — Other congenital malformation syndromes predominantly associated with short stature, Q87.2 — Congenital malformation syndromes predominantly involving limbs, Q87.3 — Congenital malformation syndromes involving early overgrowth, Q87.40 — Marfan syndrome, unspecified, Q87.410 — Marfan syndrome with aortic dilation, Q87.418 — Marfan syndrome with other cardiovascular manifestations, +59 more

Contextual Map

Every relationship of Q86.2 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 Q86.2 with this related code in Claim Check

Hierarchy

• Q00-QA1 — Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-QA1) (Q00-QA1)[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• Q80-Q89 — Other congenital malformations[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026

Referenced by Excludes1 notes

• P04.1 — Newborn affected by other maternal medication[Excludes1]: “dysmorphism due to warfarin (Q86.2)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Clinical classification (CCSR)

• MAL010 — Other specified and unspecified congenital anomalies[CCSR]— AHRQ CCSR for ICD-10-CM Diagnoses (HCUP)

MS-DRG Grouper

• DRG 794 — NEONATE WITH OTHER SIGNIFICANT PROBLEMS[MS-DRG]: “NEONATE WITH OTHER SIGNIFICANT PROBLEMS (MDC 15)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026

MDC crossing

• MDC 15 — Newborns and Other Neonates with Conditions Originating in Perinatal Period[MDC crossing]: “Newborns and Other Neonates with Conditions Originating in Perinatal Period — 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.”— CMS MS-DRG Definitions Manual · FY2026

Index entries

• Dysmorphism (due to), warfarin[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Syndrome, malformation, congenital, due to, warfarin[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026

Nearest codes

• Q86 — Congenital malformation syndromes due to known exogenous causes, not elsewhere classified[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• Q86.0 — Fetal alcohol syndrome (dysmorphic)[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• Q86.1 — Fetal hydantoin syndrome[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• Q86.8 — Other congenital malformation syndromes due to known exogenous causes[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026

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

Nearest Codes in This Family

Official ICD-10-CM classifications closest to Q86.2 in its code family, with their registry titles.

• Q86 — Congenital malformation syndromes due to known exogenous causes, not elsewhere classified
• Q86.0 — Fetal alcohol syndrome (dysmorphic)
• Q86.1 — Fetal hydantoin syndrome
• Q86.8 — Other congenital malformation syndromes due to known exogenous causes

View all codes in the Q86 family