ICD-10-PCS code structure

Section:
  0 = Medical and Surgical

Body System:
  9 = Ear, Nose, Sinus

Root Operation:

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See Terms used in Medical and Surgical

The 4^th character refers to the body part or body region.

Drainage

Taking or letting out fluids and/or gases from a body part

• 099P - Accessory Sinus

• 099A - Auditory Ossicle, Left

  Includes:

  • Incus
  • Malleus
  • Stapes

• 0999 - Auditory Ossicle, Right

  Includes:

  • Incus
  • Malleus
  • Stapes

• 099V - Ethmoid Sinus, Left

  Includes:

  • Ethmoidal air cell

• 099U - Ethmoid Sinus, Right

  Includes:

  • Ethmoidal air cell

• 099G - Eustachian Tube, Left

  Includes:

  • Auditory tube
  • Pharyngotympanic tube

• 099F - Eustachian Tube, Right

  Includes:

  • Auditory tube
  • Pharyngotympanic tube

• 0994 - External Auditory Canal, Left

  Includes:

  • External auditory meatus

• 0993 - External Auditory Canal, Right

  Includes:

  • External auditory meatus

• 0991 - External Ear, Left

  Includes:

  • Antihelix
  • Antitragus
  • Auricle
  • Earlobe
  • Helix
  • Pinna
  • Tragus

• 0990 - External Ear, Right

  Includes:

  • Antihelix
  • Antitragus
  • Auricle
  • Earlobe
  • Helix
  • Pinna
  • Tragus

• 099T - Frontal Sinus, Left

• 099S - Frontal Sinus, Right

• 099E - Inner Ear, Left

  Includes:

  • Bony labyrinth
  • Bony vestibule
  • Cochlea
  • Round window
  • Semicircular canal

• 099D - Inner Ear, Right

  Includes:

  • Bony labyrinth
  • Bony vestibule
  • Cochlea
  • Round window
  • Semicircular canal

• 099C - Mastoid Sinus, Left

  Includes:

  • Mastoid air cells

• 099B - Mastoid Sinus, Right

  Includes:

  • Mastoid air cells

• 099R - Maxillary Sinus, Left

  Includes:

  • Antrum of Highmore

• 099Q - Maxillary Sinus, Right

  Includes:

  • Antrum of Highmore

• 0996 - Middle Ear, Left

  Includes:

  • Oval window
  • Tympanic cavity

• 0995 - Middle Ear, Right

  Includes:

  • Oval window
  • Tympanic cavity

• 099K - Nasal Mucosa and Soft Tissue

  Includes:

  • Columella
  • External naris
  • Greater alar cartilage
  • Internal naris
  • Lateral nasal cartilage
  • Lesser alar cartilage
  • Nasal cavity
  • Nostril

• 099M - Nasal Septum

  Includes:

  • Quadrangular cartilage
  • Septal cartilage
  • Vomer bone

• 099L - Nasal Turbinate

  Includes:

  • Inferior turbinate
  • Middle turbinate
  • Nasal concha
  • Superior turbinate

• 099N - Nasopharynx

  Includes:

  • Choana
  • Fossa of Rosenmuller
  • Pharyngeal recess
  • Rhinopharynx

• 099X - Sphenoid Sinus, Left

• 099W - Sphenoid Sinus, Right

• 0998 - Tympanic Membrane, Left

  Includes:

  • Pars flaccida

• 0997 - Tympanic Membrane, Right

  Includes:

  • Pars flaccida