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ICD-10-CM 2027

ICD-10 code for fusion

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

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

About coding fusion

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

More specific fusion codes (official index)

  • astragaloscaphoid Q74.2 — Other congenital malformations of lower limb(s), including pelvic girdle
  • atria Q21.19 — Other specified atrial septal defect
  • auditory canal Q16.1 — Congenital absence, atresia and stricture of auditory canal (external)
  • auricles, heart Q21.19 — Other specified atrial septal defect
  • binocular with defective stereopsis H53.32 — Fusion with defective stereopsis
  • bone Q79.8 — Other congenital malformations of musculoskeletal system
  • cervical spine M43.22 — Fusion of spine, cervical region
  • choanal Q30.0 — Choanal atresia
  • commissure, mitral valve Q23.2 — Congenital mitral stenosis
  • cusps, heart valve NEC Q24.8 — Other specified congenital malformations of heart
  • mitral Q23.2 — Congenital mitral stenosis
  • pulmonary Q22.1 — Congenital pulmonary valve stenosis
  • tricuspid Q22.4 — Congenital tricuspid stenosis
  • ear ossicles Q16.3 — Congenital malformation of ear ossicles
  • fingers Q70.0 — Fused fingers
  • hymen Q52.3 — Imperforate hymen
  • joint (acquired)
  • congenital Q74.8 — Other specified congenital malformations of limb(s)
  • kidneys (incomplete) Q63.1 — Lobulated, fused and horseshoe kidney
  • labium (majus) (minus) Q52.5 — Fusion of labia
  • larynx and trachea Q34.8 — Other specified congenital malformations of respiratory system
  • limb, congenital Q74.8 — Other specified congenital malformations of limb(s)
  • lower Q74.2 — Other congenital malformations of lower limb(s), including pelvic girdle
  • upper Q74.0 — Other congenital malformations of upper limb(s), including shoulder girdle
  • lobes, lung Q33.8 — Other congenital malformations of lung
  • lumbosacral (acquired) M43.27 — Fusion of spine, lumbosacral region
  • arthrodesis status Z98.1 — Arthrodesis status
  • congenital Q76.49 — Other congenital malformations of spine, not associated with scoliosis
  • postprocedural status Z98.1 — Arthrodesis status
  • nares, nose, nasal, nostril (s) Q30.0 — Choanal atresia
  • organ or site not listed
  • ossicles Q79.9 — Congenital malformation of musculoskeletal system, unspecified
  • auditory Q16.3 — Congenital malformation of ear ossicles
  • pulmonic cusps Q22.1 — Congenital pulmonary valve stenosis
  • ribs Q76.6 — Other congenital malformations of ribs
  • sacroiliac (joint) (acquired) M43.28 — Fusion of spine, sacral and sacrococcygeal region
  • arthrodesis status Z98.1 — Arthrodesis status
  • congenital Q74.2 — Other congenital malformations of lower limb(s), including pelvic girdle
  • postprocedural status Z98.1 — Arthrodesis status
  • spine (acquired) NEC M43.20 — Fusion of spine, site unspecified
  • arthrodesis status Z98.1 — Arthrodesis status
  • cervical region M43.22 — Fusion of spine, cervical region
  • cervicothoracic region M43.23 — Fusion of spine, cervicothoracic region
  • congenital Q76.49 — Other congenital malformations of spine, not associated with scoliosis
  • lumbar M43.26 — Fusion of spine, lumbar region
  • lumbosacral region M43.27 — Fusion of spine, lumbosacral region
  • occipito-atlanto-axial region M43.21 — Fusion of spine, occipito-atlanto-axial region
  • postoperative status Z98.1 — Arthrodesis status
  • sacrococcygeal region M43.28 — Fusion of spine, sacral and sacrococcygeal region
  • thoracic region M43.24 — Fusion of spine, thoracic region
  • thoracolumbar region M43.25 — Fusion of spine, thoracolumbar region
  • sublingual duct with submaxillary duct at opening in mouth Q38.4 — Congenital malformations of salivary glands and ducts
  • testes Q55.1 — Hypoplasia of testis and scrotum
  • toes Q70.2 — Fused toes
  • tooth, teeth K00.2 — Abnormalities of size and form of teeth
  • trachea and esophagus Q39.8 — Other congenital malformations of esophagus
  • twins Q89.4 — Conjoined twins
  • vagina Q52.4 — Other congenital malformations of vagina
  • ventricles, heart Q21.0 — Ventricular septal defect
  • vertebra (arch)
  • vulva Q52.5 — Fusion of labia

Common questions about fusion ICD-10 codes

What is the ICD-10 code for astragaloscaphoid fusion?

Q74.2 — Other congenital malformations of lower limb(s), including pelvic girdle.

What is the ICD-10 code for atria fusion?

Q21.19 — Other specified atrial septal defect.

What is the ICD-10 code for auditory canal fusion?

Q16.1 — Congenital absence, atresia and stricture of auditory canal (external).

What is the ICD-10 code for binocular with defective stereopsis fusion?

H53.32 — Fusion with defective stereopsis.

What is the ICD-10 code for bone fusion?

Q79.8 — Other congenital malformations of musculoskeletal system.

What is the ICD-10 code for cervical spine fusion?

M43.22 — Fusion of spine, cervical region.

What is the ICD-10 code for choanal fusion?

Q30.0 — Choanal atresia.