U09.9 - Post COVID-19 condition, unspecified

Version 2023
Billable Code
Unspecified Code
ICD-10:U09.9
Short Description:Post COVID-19 condition, unspecified
Long Description:Post COVID-19 condition, unspecified
Status: Valid for Submission
Version:ICD-10-CM 2023
Code Classification:
  • Codes for Special Purposes (U00–U85)
    • Provisional assignment of new diseases of uncertain etiology or emergency use (U00-U49)
      • Post COVID-19 condition (U09)

U09.9 is a billable ICD-10 code used to specify a medical diagnosis of post covid-19 condition, unspecified. The code is valid during the fiscal year 2023 from October 01, 2022 through September 30, 2023 for the submission of HIPAA-covered transactions.

Unspecified diagnosis codes like U09.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to this diagnosis code:


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.

Code First

Code First
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.

Index to Diseases and Injuries References

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for this diagnosis code are found in the injuries and diseases index:

Replacement Code

U099 replaces the following previously assigned ICD-10 code(s):

Patient Education


COVID-19 (Coronavirus Disease 2019)

COVID-19 (coronavirus disease 2019) is an illness caused by a virus. This virus is a coronavirus called SARS-CoV-2. It spreads when a person who has the infection breathes out droplets and very small particles that contain the virus. On this page, you'll find links to resources on important issues such as symptoms, risks, and how you can protect yourself and your family.

We also have pages on COVID-19 testing and vaccines.


[Learn More in MedlinePlus]

Code History

Previous Code: U09

Parent Code: U09

Next Code: V00