U09.9 — Post COVID-19 condition, unspecified

U09.9

ICD-10 Chapter 22: Codes for Special Purposes — illustrative image — Chapter 22: Codes for special purposes (U00–U85) — illustrative image

What this code means

Post COVID-19 condition ('long COVID') covers symptoms that continue or develop after a COVID-19 infection, such as fatigue and breathlessness.

Also called: long covid, post covid-19 condition, post-acute sequelae.

When this code is used

Used for post COVID-19 condition, unspecified, alongside codes for the specific symptoms or conditions.

Where it sits in ICD-10-CM

Code U09.9 belongs to Chapter 22: Codes for special purposes, which covers codes U00–U85 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.

Related symptoms

Frequently asked questions

What is ICD-10-CM code U09.9?

U09.9 is the ICD-10-CM diagnosis code for “Post COVID-19 condition, unspecified”. Post COVID-19 condition ('long COVID') covers symptoms that continue or develop after a COVID-19 infection, such as fatigue and breathlessness.

When is code U09.9 used?

Used for post COVID-19 condition, unspecified, alongside codes for the specific symptoms or conditions. It belongs to Chapter 22 of ICD-10-CM (Codes for special purposes).

This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.