Q17.1 – Macrotia

ICD-10-CM 2027 diagnosis code · Congenital malformations of eye, ear, face and neck

Billable code

ICD-10-CM code Q17.1

Code: Q17.1 (claims format: Q171)
Description: Macrotia
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 17. Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
Block: Q10-Q18 Congenital malformations of eye, ear, face and neck
Parent codes: Q17

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Q17 – Other congenital malformations of ear

Excludes1 (not coded here):

congenital malformations of ear with impairment of hearing (Q16.0-Q16.9)
preauricular sinus (Q18.1)

Block Q10-Q18

Excludes2 (not included here):

cleft lip and cleft palate (Q35-Q37)
congenital malformation of cervical spine (Q05.0, Q05.5, Q67.5, Q76.0-Q76.4)
congenital malformation of larynx (Q31.-)
congenital malformation of lip NEC (Q38.0)
congenital malformation of nose (Q30.-)
congenital malformation of parathyroid gland (Q89.2)
congenital malformation of thyroid gland (Q89.2)

Index terms for Q17.1

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in Q17

Q17.0 – Accessory auricleBillable
Q17.2 – MicrotiaBillable
Q17.3 – Other misshapen earBillable
Q17.4 – Misplaced earBillable
Q17.5 – Prominent earBillable
Q17.8 – Other specified congenital malformations of earBillable
Q17.9 – Congenital malformation of ear, unspecifiedBillable

Frequently asked questions

What is ICD-10 code Q17.1?

Q17.1 is the ICD-10-CM code for macrotia, in the block Q10-Q18 (Congenital malformations of eye, ear, face and neck).

Is Q17.1 a billable code?

Yes. Q17.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does Q17.1 belong to?

It belongs to category Q17 – Other congenital malformations of ear.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.