Q27.8 Other specified congenital malformations of peripheral vascular system

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Applicable to

• Absence of peripheral vascular system
• Atresia of peripheral vascular system
• Congenital aneurysm (peripheral)
• Congenital stricture, artery
• Congenital varix

Excludes1 (never code together)

• arteriovenous malformation (Q27.3-)

Applies from Q27 Other congenital malformations of peripheral vascular system

Excludes2 (not included here)

• anomalies of cerebral and precerebral vessels (Q28.0-Q28.3)
• anomalies of coronary vessels (Q24.5)
• anomalies of pulmonary artery (Q25.5-Q25.7)
• congenital retinal aneurysm (Q14.1)
• hemangioma and lymphangioma (D18.-)

MS-DRG index

Defines the logic of DRG(s) 299-301 in MDC 05.

Approximate ICD-9-CM (GEMs)

• 747.69 Anomalies of other specified sites of peripheral vascular system (approximate)

Code annotations containing back-references to Q27.8

Back-references to Q27.8

• Type 1 Excludes: Q28 Other congenital malformations of circulatory system ("congenital aneurysm NOS (Q27.8)")
• Type 2 Excludes: Q28 Other congenital malformations of circulatory system ("congenital peripheral aneurysm (Q27.8)")

Back-references to Q27

• Code Also: I27.21 Secondary pulmonary arterial hypertension ("congenital heart disease (Q20-Q28)")
• Type 2 Excludes: P29 Cardiovascular disorders originating in the perinatal period ("congenital malformations of the circulatory system (Q20-Q28)")
• Code Also: Z71.87 Encounter for pediatric-to-adult transition counseling ("congenital malformations of the circulatory system (Q20-Q28)")

Diagnosis Index entries for Q27.8

• Aberrant (congenital) › artery (peripheral)
• Aberrant (congenital) › artery (peripheral) › digestive system
• Aberrant (congenital) › artery (peripheral) › lower limb
• Aberrant (congenital) › artery (peripheral) › specified site NEC
• Aberrant (congenital) › artery (peripheral) › subclavian
• Aberrant (congenital) › artery (peripheral) › upper limb
• Aberrant (congenital) › subclavian artery
• Aberrant (congenital) › vein (peripheral) NEC
• Aberrant (congenital) › vein (peripheral) NEC › digestive system
• Aberrant (congenital) › vein (peripheral) NEC › lower limb
• Aberrant (congenital) › vein (peripheral) NEC › specified site NEC
• Aberrant (congenital) › vein (peripheral) NEC › upper limb
• Absence (of) (organ or part) (complete or partial) › artery (congenital) (peripheral)
• Absence (of) (organ or part) (complete or partial) › artery (congenital) (peripheral) › specified NEC
• Absence (of) (organ or part) (complete or partial) › vein (peripheral) congenital NEC
• Absence (of) (organ or part) (complete or partial) › vein (peripheral) congenital NEC › digestive system
• Absence (of) (organ or part) (complete or partial) › vein (peripheral) congenital NEC › lower limb
• Absence (of) (organ or part) (complete or partial) › vein (peripheral) congenital NEC › specified site NEC
• Absence (of) (organ or part) (complete or partial) › vein (peripheral) congenital NEC › upper limb
• Agenesis › artery (peripheral) › specified NEC
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › congenital (peripheral)
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › congenital (peripheral) › digestive system
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › congenital (peripheral) › lower limb
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › congenital (peripheral) › specified site NEC
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › congenital (peripheral) › upper limb
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › peripheral NEC › congenital
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › peripheral NEC › congenital › digestive system
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › peripheral NEC › congenital › lower limb
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › peripheral NEC › congenital › specified site NEC
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › peripheral NEC › congenital › upper limb
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › venous › congenital
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › venous › congenital › digestive system
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › venous › congenital › lower limb
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › venous › congenital › specified site NEC
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › venous › congenital › upper limb
• Anomaly, anomalous (congenital) (unspecified type) › artery (peripheral) › digestive system
• Anomaly, anomalous (congenital) (unspecified type) › artery (peripheral) › lower limb
• Anomaly, anomalous (congenital) (unspecified type) › artery (peripheral) › peripheral › specified NEC
• Anomaly, anomalous (congenital) (unspecified type) › artery (peripheral) › specified site NEC
• Anomaly, anomalous (congenital) (unspecified type) › artery (peripheral) › subclavian
• Anomaly, anomalous (congenital) (unspecified type) › artery (peripheral) › upper limb
• Atresia, atretic › artery NEC
• Atresia, atretic › artery NEC › digestive system
• Atresia, atretic › artery NEC › lower limb
• Atresia, atretic › artery NEC › specified site NEC
• Atresia, atretic › artery NEC › upper limb
• Atresia, atretic › vascular NEC
• Atresia, atretic › vascular NEC › digestive system
• Atresia, atretic › vascular NEC › lower limb
• Atresia, atretic › vascular NEC › specified site NEC

Nearby codes

• Q27.32 Arteriovenous malformation of vessel of lower limb
• Q27.33 Arteriovenous malformation of digestive system vessel
• Q27.34 Arteriovenous malformation of renal vessel
• Q27.39 Arteriovenous malformation, other site
• Q27.4 Congenital phlebectasia
• Q27.8 Other specified congenital malformations of peripheral vascular system (this code)
• Q27.9 Congenital malformation of peripheral vascular system, unspecified