ICD-10 Diagnosis Code R09.82

Postnasal drip

Diagnosis Code R09.82

ICD-10: R09.82
Short Description: Postnasal drip
Long Description: Postnasal drip
This is the 2018 version of the ICD-10-CM diagnosis code R09.82

Valid for Submission
The code R09.82 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00–R99)
    • Symptoms and signs involving the circulatory and respiratory systems (R00-R09)
      • Oth symptoms and signs involving the circ and resp sys (R09)

Information for Medical Professionals

According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.
Diagnostic Related Groups
The diagnosis code R09.82 is grouped in the following Diagnostic Related Group(s) (MS-DRG V35.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Complaining of postnasal drip
  • Discharge of pharynx
  • Nasal discharge
  • Posterior rhinorrhea
  • Postnasal discharge on posterior wall of pharynx
  • Respiratory symptom

Information for Patients


Sinusitis means your sinuses are inflamed. The cause can be an infection or another problem. Your sinuses are hollow air spaces within the bones surrounding the nose. They produce mucus, which drains into the nose. If your nose is swollen, this can block the sinuses and cause pain.

There are several types of sinusitis, including

  • Acute, which lasts up to 4 weeks
  • Subacute, which lasts 4 to 12 weeks
  • Chronic, which lasts more than 12 weeks and can continue for months or even years
  • Recurrent, with several attacks within a year

Acute sinusitis often starts as a cold, which then turns into a bacterial infection. Allergies, nasal problems, and certain diseases can also cause acute and chronic sinusitis.

Symptoms of sinusitis can include fever, weakness, fatigue, cough, and congestion. There may also be mucus drainage in the back of the throat, called postnasal drip. Your health care professional diagnoses sinusitis based on your symptoms and an examination of your nose and face. You may also need imaging tests. Treatments include antibiotics, decongestants, and pain relievers. Using heat pads on the inflamed area, saline nasal sprays, and vaporizers can also help.

NIH: National Institute of Allergy and Infectious Diseases

  • Saline nasal washes (Medical Encyclopedia)
  • Sinus CT scan (Medical Encyclopedia)
  • Sinus MRI scan (Medical Encyclopedia)
  • Sinus x-ray (Medical Encyclopedia)
  • Sinusitis (Medical Encyclopedia)
  • Sinusitis in adults - aftercare (Medical Encyclopedia)
  • Stuffy or runny nose - adult (Medical Encyclopedia)
  • Stuffy or runny nose - children (Medical Encyclopedia)

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