ICD-10-CM 2027

ICD-10 code for septum

Choose a code from the options below based on the documentation.

From the official ICD-10-CM alphabetic index entry “Septum, septate (congenital)”. Page updated September 29, 2026.

About coding septum

The official ICD-10-CM index doesn't give a single default code for septum; the code depends on the details below.

anal Q42.3 — Congenital absence, atresia and stenosis of anus without fistula
with fistula Q42.2 — Congenital absence, atresia and stenosis of anus with fistula
aqueduct of Sylvius Q03.0 — Malformations of aqueduct of Sylvius
with spina bifida
uterus Q51.28 — Other and unspecified doubling of uterus
complete Q51.21 — Complete doubling of uterus
partial Q51.22 — Partial doubling of uterus
specified NEC Q51.28 — Other and unspecified doubling of uterus
vagina Q52.10 — Doubling of vagina, unspecified
in pregnancy
causing obstructed labor O65.5 — Obstructed labor due to abnormality of maternal pelvic organs
longitudinal Q52.129 — Other and unspecified longitudinal vaginal septum
microperforate
left side Q52.124 — Longitudinal vaginal septum, microperforate, left side
right side Q52.123 — Longitudinal vaginal septum, microperforate, right side
nonobstruction Q52.120 — Longitudinal vaginal septum, nonobstructing
obstructing Q52.129 — Other and unspecified longitudinal vaginal septum
left side Q52.122 — Longitudinal vaginal septum, obstructing, left side
right side Q52.121 — Longitudinal vaginal septum, obstructing, right side
transverse Q52.11 — Transverse vaginal septum

What is the ICD-10 code for anal septum?: Q42.3 — Congenital absence, atresia and stenosis of anus without fistula.
What is the ICD-10 code for aqueduct of sylvius septum?: Q03.0 — Malformations of aqueduct of Sylvius.
What is the ICD-10 code for uterus septum?: Q51.28 — Other and unspecified doubling of uterus.
What is the ICD-10 code for vagina septum?: Q52.10 — Doubling of vagina, unspecified.