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ICD-10/Q25.48

Q25.48 ICD-10-CM Code: Anomalous origin of subclavian artery

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

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0, Appendix B.

  • MS-DRG 306 — CARDIAC CONGENITAL AND VALVULAR DISORDERS WITH MCC (MDC 05)
  • MS-DRG 307 — CARDIAC CONGENITAL AND VALVULAR DISORDERS WITHOUT MCC (MDC 05)

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.

Official Registry Overview & Definition

Anomalous origin of subclavian artery is a billable ICD-10-CM diagnosis code (Q25.48).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for Q25.48 in the official ICD-10-CM tabular list.

Excludes1 — Not Coded Here

Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Change history

  • FY2017 — 2016-10-01
    Added to the code set
    Anomalous origin of subclavian artery
    FY2017 changes

Verify Before Coding

  • Billable — reportable as written.
  • 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.

Contextual Map

Every relationship of Q25.48 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.

Hierarchy

  • Q00-Q99 — Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) (Q00-Q99) [Hierarchy]

Clinical classification (CCSR)

  • MAL001 — Cardiac and circulatory congenital anomalies [CCSR]

Potential MS-DRG

  • CC — Complication or Comorbidity [MS-DRG severity]: “As a secondary diagnosis this code can raise the stay's MS-DRG severity tier (CC).”
  • DRG 306 — CARDIAC CONGENITAL AND VALVULAR DISORDERS WITH MCC [MS-DRG]: “CARDIAC CONGENITAL AND VALVULAR DISORDERS WITH MCC (MDC 05)”
  • DRG 307 — CARDIAC CONGENITAL AND VALVULAR DISORDERS WITHOUT MCC [MS-DRG]: “CARDIAC CONGENITAL AND VALVULAR DISORDERS WITHOUT MCC (MDC 05)”

MDC crossing · procedures (17209)

  • MDC 05 — Diseases and Disorders of the Circulatory System [MDC crossing]: “Diseases and Disorders of the Circulatory System — 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.”
  • 00HE0MZ — Insertion of Neurostimulator Lead into Cranial Nerve, Open Approach [Same-MDC procedure]: “Insertion of Neurostimulator Lead into Cranial Nerve, Open Approach — grouped in MDC 05, the procedure side of this code's crossing.” · check together
  • 00HE3MZ — Insertion of Neurostimulator Lead into Cranial Nerve, Percutaneous Approach [Same-MDC procedure]: “Insertion of Neurostimulator Lead into Cranial Nerve, Percutaneous Approach — grouped in MDC 05, the procedure side of this code's crossing.” · check together
  • 00HE4MZ — Insertion of Neurostimulator Lead into Cranial Nerve, Percutaneous Endoscopic Approach [Same-MDC procedure]: “Insertion of Neurostimulator Lead into Cranial Nerve, Percutaneous Endoscopic Approach — grouped in MDC 05, the procedure side of this code's crossing.” · check together
  • 015K0ZZ — Destruction of Head and Neck Sympathetic Nerve, Open Approach [Same-MDC procedure]: “Destruction of Head and Neck Sympathetic Nerve, Open Approach — grouped in MDC 05, the procedure side of this code's crossing.” · check together
  • 015K3ZZ — Destruction of Head and Neck Sympathetic Nerve, Percutaneous Approach [Same-MDC procedure]: “Destruction of Head and Neck Sympathetic Nerve, Percutaneous Approach — grouped in MDC 05, the procedure side of this code's crossing.” · check together
  • and 17204 more

Index entries

  • Anomaly, anomalous (congenital) (unspecified type), artery (peripheral), subclavian, origin[Index term]
  • Anomaly, anomalous (congenital) (unspecified type), origin, artery, subclavian[Index term]

Nearest codes (25)

  • Q25 — Congenital malformations of great arteries [Sibling]
  • Q25.0 — Patent ductus arteriosus [Sibling]
  • Q25.1 — Coarctation of aorta [Sibling]
  • Q25.2 — Atresia of aorta [Sibling]
  • Q25.21 — Interruption of aortic arch [Sibling]
  • Q25.29 — Other atresia of aorta [Sibling]
  • Q25.3 — Supravalvular aortic stenosis [Sibling]
  • Q25.4 — Other congenital malformations of aorta [Sibling]
  • and 17 more

Change history

  • FY2017 — Added to the code set [Change history]

Relationships & Classification

Clinical classification (AHRQ CCSR):MAL001 — Cardiac and circulatory 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.

Potential MS-DRG Relationships (FY2026)

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 56 clinically related codes on its CMS exclusion list.

Named in the grouper logic of 2 MS-DRGs: DRG 306 (MDC 05), DRG 307 (MDC 05).

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

Nearest Codes in This Family

Official ICD-10-CM classifications closest to Q25.48 in its code family, with their registry titles.

  • Q25.43 — Congenital aneurysm of aorta
  • Q25.44 — Congenital dilation of aorta
  • Q25.45 — Double aortic arch
  • Q25.46 — Tortuous aortic arch
  • Q25.47 — Right aortic arch
  • Q25.49 — Other congenital malformations of aorta
  • Q25.5 — Atresia of pulmonary artery
  • Q25.6 — Stenosis of pulmonary artery
  • Q25.7 — Other congenital malformations of pulmonary artery
  • Q25.71 — Coarctation of pulmonary artery

View all codes in the Q25 family

Indexed Clinical Terms (2)

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.

  • Anomaly, anomalous (congenital) (unspecified type), artery (peripheral), subclavian, origin
  • Anomaly, anomalous (congenital) (unspecified type), origin, artery, subclavian