2027 ICD-10-CM Diagnosis Code Q27.9Congenital malformation of peripheral vascular system, unspecified
ICD-10-CM Codes›Q00-Q99›Q20-Q28›Q27
- Billable — Valid for Submission
- POA Exempt
- Chronic Condition
Q27.9 is a billable ICD-10-CM diagnosis code for congenital malformation of peripheral vascular system, unspecified. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 299 through 301. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Cardiac and circulatory congenital anomalies.
Code Identity
Code Classification
Present on Admission (POA)Billing
Q27.9 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Congenital malformations of the circulatory system (Q20-Q28).
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Abnormal umbilical cord
- Agenesis of artery
- Arterial anomaly of umbilical cord
- Arterial malformation
- Bilateral congenital anomaly of blood vessels of lower limbs
- Bilateral congenital anomaly of blood vessels of upper limbs
- Blue rubber bleb nevus
- Capillary malformation
- Capillary malformation-arteriovenous malformation syndrome
- Capillary-venous malformation
- Capillary-venous-lymphatic malformation
- CLOVE syndrome
- Congenital abnormality of systemic artery
- Congenital abnormality of systemic vein
- Congenital abnormality of vein
- Congenital anomaly of blood vessel of left lower limb
- Congenital anomaly of blood vessel of left upper limb
- Congenital anomaly of blood vessel of limb
- Congenital anomaly of blood vessel of lower limb
- Congenital anomaly of blood vessel of right lower limb
- Congenital anomaly of blood vessel of right upper limb
- Congenital anomaly of blood vessel of upper limb
- Congenital anomaly of gastrointestinal vessel
- Congenital anomaly of peripheral blood vessel
- Congenital dysplasia of left lobe of lung co-occurrent with congenital vascular malformation
- Congenital dysplasia of right lobe of lung co-occurrent with congenital vascular malformation
- Congenital vascular malformation
- Congenital vascular nevus
- Congenital venous malformation of skin
- Cutaneous capillary malformation
- Cutaneous vascular malformation
- Diffuse capillary malformation with overgrowth
- Diffuse lymphatic malformation
- Dysplasia of lung
- Four vessels in umbilical cord
- Hereditary vascular fragility
- Infantile hemangioma
- Infantile hemangioma of rare localization
- Microcephaly-capillary malformation syndrome
- Mixed vascular malformation
- Peripheral venous malformation
- PHACE syndrome
- Posterior cord syndrome due to vascular malformation
- Primary intraosseous venous malformation
- Short umbilical cord
- Vascular anomaly of umbilical cord
- Vascular disorder of inner ear
- Vascular malformation of inner ear
- Venous anomaly of umbilical cord
- Venous malformation
- Venous remnant
- Venous valvular anomaly
- Venous-lymphatic malformation
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to Q27.9: its own notes plus those printed at Q27 and Chapter 17. A note printed at a category, block or chapter applies to every code under it.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Anomaly of artery or vein NOS
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
Notes
General instructions on how these codes are used.
- Codes from this chapter are not for use on maternal records
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
artery (peripheral) Q27.9
vein (s) (peripheral) Q27.9
Anomaly, anomalous (congenital) (unspecified type) Q89.9
artery (peripheral) Q27.9
peripheral Q27.9
capillary Q27.9
vascular Q27.9
vein (s) (peripheral) Q27.9
vessel (s) Q27.9
Malformation (congenital) See Also: Anomaly;
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Birth Defects
A birth defect is a problem that happens while a baby is developing in the mother's body. Most birth defects happen during the first 3 months of pregnancy. One out of every 33 babies in the United States is born with a birth defect.
The full article covers:
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Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert Q27.9 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About Q27.9Overview
What is the ICD-10 code for congenital malformation of peripheral vascular system, unspecified?
The ICD-10-CM code for congenital malformation of peripheral vascular system, unspecified is Q27.9 (sometimes written as Q279). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is Q27.9 (Other congenital malformations of peripheral vascular system) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report congenital malformation of peripheral vascular system, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does Q27.9 group to?
When congenital malformation of peripheral vascular system, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 301, 300, 299, with relative weights from 0.7132 to 1.5840 depending on complications. Higher weights mean higher Medicare reimbursement.
Is Q27.9 exempt from POA reporting?
Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for congenital malformation of peripheral vascular system, unspecified on inpatient claims. The code appears in the Congenital malformations of the circulatory system (Q20-Q28) range of the CMS exempt list.
What is the ICD-9 equivalent of Q27.9?
Under the General Equivalence Mappings, congenital malformation of peripheral vascular system, unspecified converts to ICD-9-CM 747.60 (unsp prpherl vasc anomal). The mapping is approximate, so confirm the match fits the documentation.
