2027 ICD-10-CM Diagnosis Code J12.82Pneumonia due to coronavirus disease 2019

ICD-10-CM Codes›J00–J99›J09-J18›J12

ICD-10-CM J12.82
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

J12.82 is a billable ICD-10-CM diagnosis code for pneumonia due to coronavirus disease 2019. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 193 through 195, 974 through 976. As a secondary diagnosis, it counts as a major complication or comorbidity (MCC) and places an inpatient stay in the highest severity level of its MS-DRG family. The code is not accepted as a principal diagnosis by the Medicare Code Editor. Coders also document this condition as COVID-19. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Coronavirus disease – 2019 (COVID-19) and Pneumonia (except that caused by tuberculosis).

Code Identity

ICD-10-CM Code
J12.82
Billable Status
Yes — Valid for Submission
Code Describes
Pneumonia due to coronavirus disease 2019
Short Description
Pneumonia due to coronavirus disease 2019
Same as the full description in the CMS dataset.
Parent Code
J12.8
Other viral pneumonia

Code Classification

ChapterJ00–J99Diseases of the respiratory system
SectionJ09-J18Influenza and pneumonia
CategoryJ12Viral pneumonia, not elsewhere classified
This CodeJ12.82Pneumonia due to coronavirus disease 2019

Code EditsBilling

Medicare Code Editor checks that affect claim validity for J12.82.

Unacceptable principal diagnosis
There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • COVID-19
  • Infection of lower respiratory tract caused by SARS-CoV-2
  • Pneumonia caused by Human coronavirus
  • Pneumonia caused by SARS-CoV-2

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to J12.82: its own notes plus those printed at J12, block J09-J18, and Chapter 10. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From J12 Viral pneumonia, not elsewhere classified applies to 8 codes
  • bronchopneumonia due to viruses other than influenza viruses

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Pneumonia due to 2019 novel coronavirus (SARS-CoV-2)
  • Pneumonia due to COVID-19

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From J12 Viral pneumonia, not elsewhere classified applies to 8 codes
  • aspiration pneumonia due to anesthesia during labor and delivery (O74.0)
  • aspiration pneumonia due to anesthesia during pregnancy (O29)
  • aspiration pneumonia due to anesthesia during puerperium (O89.0)
  • aspiration pneumonia due to solids and liquids (J69.-)
  • aspiration pneumonia NOS (J69.0)
  • congenital pneumonia (P23.0)
  • congenital rubella pneumonitis (P35.0)
  • interstitial pneumonia NOS (J84.9)
  • lipid pneumonia (J69.1)
  • neonatal aspiration pneumonia (P24.-)
From Block J09-J18 Influenza and pneumonia applies to 53 codes
  • allergic or eosinophilic pneumonia (J82)
  • aspiration pneumonia NOS (J69.0)
  • meconium pneumonia (P24.01)
  • neonatal aspiration pneumonia (P24.-)
  • pneumonia due to solids and liquids (J69.-)
  • congenital pneumonia (P23.9)
  • lipid pneumonia (J69.1)
  • rheumatic pneumonia (I00)
  • ventilator associated pneumonia (J95.851)
From Chapter 10 (J00-J99) Diseases of the respiratory system applies to 366 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • smoke inhalation (T59.81-)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Code First

The underlying condition named in the note is sequenced before this code.

On J12.82 itself
From J12 Viral pneumonia, not elsewhere classified applies to 8 codes

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Block J09-J18 Influenza and pneumonia applies to 53 codes
  • code, if applicable, to identify resistance to antimicrobial drugs (Z16.-)
From Chapter 10 (J00-J99) Diseases of the respiratory system applies to 366 codes
  • code, where applicable, to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • exposure to tobacco smoke in the perinatal period (P96.81)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

Code Also

A second code may be needed to fully describe the condition; the note gives no sequencing direction.

From J12 Viral pneumonia, not elsewhere classified applies to 8 codes
  • associated abscess, if applicable (J85.1)

Notes

General instructions on how these codes are used.

From Chapter 10 (J00-J99) Diseases of the respiratory system applies to 366 codes
  • When a respiratory condition is described as occurring in more than one site and is not specifically indexed, it should be classified to the lower anatomic site (e.g. tracheobronchitis to bronchitis in J40).

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name J12.82, its category, or a range that includes it.

Use Additional Code 2

These codes say to use an additional code from the note, and J12.82 is one of the codes named.

  • U07.1 COVID-19
    pneumonia due to COVID-19 (J12.82)
  • J95.89 Other postprocedural complications and disorders of respiratory system, not elsewhere classified
    bacterial or viral pneumonia (J12-J18) names J12-J18, which includes this code

Code Also 3

These codes say J12.82 may also be needed to fully describe the condition. The note gives no sequencing direction.

  • M35.81 Multisystem inflammatory syndrome
    pneumonia due to COVID-19 (J12.82)
  • J69 Pneumonitis due to solids and liquids
    viral pneumonia (J12.-) names J12.-, which includes this code
  • D81.82 Activated Phosphoinositide 3-kinase Delta Syndrome [APDS]
    pneumonia (J12-J18) names J12-J18, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR INF012
Coronavirus disease – 2019 (COVID-19)
Default principal diagnosis: inpatient No · outpatient No
CCSR RSP002
Pneumonia (except that caused by tuberculosis)
Default principal diagnosis: inpatient No · outpatient Yes

Clinical InformationClinical

  • Pneumonia, Viral

    inflammation of the lung parenchyma that is caused by a viral infection.

Patient EducationClinical

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.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code History & ChangesHistory

Replacement J12.82 replaces the following previously assigned code(s):

  • J12.89 - Other viral pneumonia
FY 2022AddedAdded to the ICD-10-CM code setEffective October 1, 2021.
FY 2023–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About J12.82Overview

What is the ICD-10 code for pneumonia due to coronavirus disease 2019?

The ICD-10-CM code for pneumonia due to coronavirus disease 2019 is J12.82 (sometimes written as J1282). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is J12.82 (Other viral pneumonia) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report pneumonia due to coronavirus disease 2019 on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does J12.82 group to?

On inpatient claims, pneumonia due to coronavirus disease 2019 maps to MS-DRG 195, 193, 194, 974, 976, 975, with relative weights from 0.6062 to 3.0488 depending on complications. Higher weights mean higher Medicare reimbursement.

Is J12.82 a CC or MCC?

CMS lists J12.82 as an MCC (major complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it places the inpatient stay in the highest-weighted DRG of its severity family.

Can J12.82 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because pneumonia due to coronavirus disease 2019 describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.