ICD10BillableValid for clinical use

ICD-10 Code U09.9: Post COVID-19 condition, unspecified

U09.9 is a billable ICD-10 diagnosis code used to classify Post COVID-19 condition, unspecified in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Codes for special purposes (U00-U85).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Codes for special purposes (U00-U85).

When is it used?

  • May be used when a clinician documents post covid-19 condition, unspecified in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
22Codes for special purposes (U00-U85)
block
U00-U49Provisional assignment of new diseases of uncertain etiology or emergency use
category
U09Post COVID-19 condition
currentU09

Official coding notes

Inclusion terms
  • Post-acute sequela of COVID-19
Applicable to
  • the specific condition related to COVID-19 if known, such as:
  • chronic respiratory failure (J96.1-)
  • loss of smell (R43.8)
  • loss of taste (R43.8)
  • multisystem inflammatory syndrome (M35.81)
  • pulmonary embolism (I26.-)
  • pulmonary fibrosis (J84.10)
Code first
  • the specific condition related to COVID-19 if known, such as:
  • chronic respiratory failure (J96.1-)
  • loss of smell (R43.8)
  • loss of taste (R43.8)
  • multisystem inflammatory syndrome (M35.81)
  • pulmonary embolism (I26.-)
  • pulmonary fibrosis (J84.10)

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

General Physician

Coverage-related procedures and services

CPT 31720high
CATHETER ASPIRATION (SEPARATE PROCEDURE); NASOTRACHEAL
Source: CMS coverage guidance
CPT 94664high
DEMONSTRATION AND/OR EVALUATION OF PATIENT UTILIZATION OF AN AEROSOL GENERATOR, NEBULIZER, METERED DOSE INHALER OR IPPB DEVICE
Source: CMS coverage guidance
CPT 94640high
PRESSURIZED OR NONPRESSURIZED INHALATION TREATMENT FOR ACUTE AIRWAY OBSTRUCTION FOR THERAPEUTIC PURPOSES AND/OR FOR DIAGNOSTIC PURPOSES SUCH AS SPUTUM INDUCTION WITH AN AEROSOL GENERATOR, NEBULIZER, METERED DOSE INHALER OR INTERMITTENT POSITIVE PRESSURE BREATHING (IPPB) DEVICE
Source: CMS coverage guidance
HCPCS G0239high
THERAPEUTIC PROCEDURES TO IMPROVE RESPIRATORY FUNCTION OR INCREASE STRENGTH OR ENDURANCE OF RESPIRATORY MUSCLES, TWO OR MORE INDIVIDUALS (INCLUDES MONITORING)
Source: CMS coverage guidance
HCPCS G0238high
THERAPEUTIC PROCEDURES TO IMPROVE RESPIRATORY FUNCTION, OTHER THAN DESCRIBED BY G0237, ONE ON ONE, FACE TO FACE, PER 15 MINUTES (INCLUDES MONITORING)
Source: CMS coverage guidance
HCPCS G0237high
THERAPEUTIC PROCEDURES TO INCREASE STRENGTH OR ENDURANCE OF RESPIRATORY MUSCLES, FACE TO FACE, ONE ON ONE, EACH 15 MINUTES (INCLUDES MONITORING)
Source: CMS coverage guidance

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
U09.9

Common synonyms

Post COVID-19 condition, unspecifiedPost COVID-19 condition

Frequently asked questions

Code details

CodeU09.9
SystemICD10
Display namePost COVID-19 condition, unspecified
ChapterCodes for special purposes (U00-U85)
BlockProvisional assignment of new diseases of uncertain etiology or emergency use

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
COVID-19COVID-19COVID-19ConditionLongPost COVID-19 condition, unspecifiedSARS-CoV-2Sequelae(of)Sequelae(of)Syndrome
See also
COVID-19

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code U09.9 for Post COVID-19 condition, unspecified | HealthAssure