2027 ICD-10-CM Diagnosis Code J00Acute nasopharyngitis [common cold]

ICD-10-CM Codes›J00–J99›J00-J06›J00

ICD-10-CM J00
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

J00 is a billable ICD-10-CM diagnosis code for acute nasopharyngitis [common cold]. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 11 through 13, 152 through 153. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified upper respiratory infections.

Code Identity

ICD-10-CM Code
J00
Billable Status
Yes — Valid for Submission
Code Describes
Acute nasopharyngitis [common cold]
Short Description
Acute nasopharyngitis [common cold]
Same as the full description in the CMS dataset.
Chapter
J00-J06
Acute upper respiratory infections

Code Classification

ChapterJ00–J99Diseases of the respiratory system
SectionJ00-J06Acute upper respiratory infections
CategoryJ00Acute nasopharyngitis [common cold]
This CodeJ00Acute nasopharyngitis [common cold]

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acute irritant rhinitis
  • Acute nasopharyngitis caused by respiratory syncytial virus
  • Acute rhinosinusitis
  • Acute upper respiratory infection caused by respiratory syncytial virus
  • Acute viral pharyngitis
  • Common cold
  • Inflammatory disorder of ear, nose and/or throat
  • Irritant rhinitis
  • Nasopharyngitis
  • Non-infective non-allergic rhinitis
  • Parainfluenza virus pharyngitis
  • Parainfluenza virus rhinopharyngitis
  • Respiratory syncytial virus pharyngitis
  • Rhinosinusitis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to J00: its own notes plus those printed at block J00-J06 and Chapter 10. A note printed at a category, block or chapter applies to every code under it.

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.

  • Acute rhinitis
  • Coryza (acute)
  • Infective nasopharyngitis NOS
  • Infective rhinitis
  • Nasal catarrh, acute
  • Nasopharyngitis NOS

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

On J00 itself
From Block J00-J06 Acute upper respiratory infections applies to 35 codes
  • chronic obstructive pulmonary disease with acute lower respiratory infection (J44.0)

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.

On J00 itself
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)

Use Additional Code

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

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)

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 J00, its category, or a range that includes it.

Excludes2 1

These codes carry an Excludes2 note naming J00: its condition is not part of those codes, and both may be reported when the patient has both.

  • J31.1 Chronic nasopharyngitis
    acute nasopharyngitis (J00)

Code Also 1

These codes say J00 may also be needed to fully describe the condition. The note gives no sequencing direction.

  • D81.82 Activated Phosphoinositide 3-kinase Delta Syndrome [APDS]
    other acute respiratory tract infections (J00-J06; J20-J22)

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 RSP006
Other specified upper respiratory infections
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Catarrh

    inflammation of a mucous membrane with increased flow of mucous in humans or animals. catarrh is used mostly in a historical context.

  • Nasopharyngitis

    inflammation of the nasopharynx, usually including its mucosa, related lymphoid structure, and glands.

Patient EducationClinical

Common Cold

The common cold is a mild infection of your upper respiratory tract (which includes your nose and throat). Colds are probably the most common illness. Adults have an average of 2-3 colds per year, and children have even more. Colds are more common in the winter and spring, but you can get them at any time.

The full article covers:

  • What is the common cold?
  • What causes the common cold?
  • What are the symptoms of the common cold?
  • What are the treatments for the common cold?
  • Can the common cold be prevented?

Read the full article at MedlinePlus

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

Convert J00 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
460 Acute nasopharyngitis
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About J00Overview

What is the ICD-10 code for acute nasopharyngitis [common cold]?

The ICD-10-CM code for acute nasopharyngitis [common cold] is J00. It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is J00 (Acute nasopharyngitis [common cold]) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report acute nasopharyngitis [common cold] on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does J00 group to?

When acute nasopharyngitis [common cold] is the principal diagnosis on an inpatient stay, it groups to MS-DRG 12, 11, 152, 153, 13, with relative weights from 0.7420 to 5.6129 depending on complications. Higher weights mean higher Medicare reimbursement.

Can J00 be reported with a code from J02?

Not as a rule. The Excludes1 note on J00 lists "acute pharyngitis (J02.-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

What is the ICD-9 equivalent of J00?

Under the General Equivalence Mappings, acute nasopharyngitis [common cold] converts to ICD-9-CM 460 (acute nasopharyngitis). The mapping is a direct match.