2026 ICD-10-CM Diagnosis Code T78.19XD

Approximate Synonyms

The following list of clinical terms are approximate synonyms, alternative descriptions, or common phrases that might be used by patients, healthcare providers, or medical coders to describe the same condition. These synonyms and related diagnosis terms are often used when searching for an ICD-10 code, especially when the exact medical terminology is unclear. Whether you're looking for lay terms, similar diagnosis names, or common language alternatives, this list can help guide you to the correct ICD-10 classification.

Clinical Information

• Bronchospasm

  sudden contraction of the smooth muscles of the bronchial wall.

• Bronchospasm, CTCAE|Bronchospasm|Bronchospasm

  a disorder characterized by a sudden contraction of the smooth muscles of the bronchial wall or narrowing of the airway. may be manifested as wheezing.

• Exercise-Induced Bronchospasm|Exercise induced bronchospasm

  sudden contraction of the smooth muscles of the bronchial wall that occurs during or following exercise.

• Grade 1 Bronchospasm, CTCAE|Grade 1 Bronchospasm

  mild symptoms; intervention not indicated

• Grade 2 Bronchospasm, CTCAE|Grade 2 Bronchospasm

  symptomatic; medical intervention indicated; limiting instrumental adl or mild/moderate impact on age-appropriate normal daily activity (pediatric)

• Grade 3 Bronchospasm, CTCAE|Grade 3 Bronchospasm

  supplemental oxygen indicated; limiting self-care adl or severe impact on age-appropriate normal daily activity (pediatric)

• Grade 4 Bronchospasm, CTCAE|Grade 4 Bronchospasm

  life-threatening respiratory or hemodynamic compromise; intubation or urgent intervention indicated

• Grade 5 Bronchospasm, CTCAE|Grade 5 Bronchospasm

  death

Coding Guidelines

The appropriate 7th character is to be added to each code from block Adverse effects, not elsewhere classified (T78). Use the following options for the aplicable episode of care:

• A - initial encounter
• D - subsequent encounter
• S - sequela

New 2026 ICD-10-CM Code

T78.19XD is new to ICD-10-CM code set for the FY 2026, effective October 1, 2025. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2025. This is a new and revised code for the FY 2026 (October 1, 2025 - September 30, 2026).

Code Edits

The Medicare Code Editor (MCE) detects errors and inconsistencies in ICD-10-CM diagnosis coding that can affect Medicare claim validity. These Medicare code edits help medical coders and billing professionals determine when a diagnosis code is not appropriate as a principal diagnosis, does not meet coverage criteria. Use this list to verify whether a code is valid for Medicare billing and to avoid claim rejections or denials due to diagnosis coding issues.

MS-DRG Mapping for ICD-10-CM Code T78.19XD

Diagnosis-Related Groups (DRGs) are used to classify hospital cases for billing and healthcare management. They help standardize how hospitals and other providers are reimbursed for inpatient care. Patients are grouped based on their principal diagnosis into broader categories called Major Diagnostic Categories (MDCs).

Once assigned to a DRG, the hospital receives a set payment for the patient’s care, regardless of the actual services provided. This fixed rate is intended to cover the typical cost of treating patients within that group. The payment amount depends on the DRG's relative weight, which reflects the expected complexity and cost of care based on the severity of the patient’s condition.

Diagnostic related groups encourage healthcare providers to focus on quality and efficiency in patient care while managing costs effectively. The diagnosis code is present in the following groups for version MS-DRG V43.0 applicable from 10/01/2025 through 09/30/2026.

Present on Admission (POA)

T78.19XD is exempt from POA reporting - The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement. Review other POA exempt codes here.

CMS POA Indicator Options and Definitions

Replacement Code

T7819XD replaces the following previously assigned ICD-10-CM code(s):

• T78.1XXD - Oth adverse food reactions, not elsewhere classified, subs

Code History

• FY 2026 - Code Added, effective from 10/1/2025 through 9/30/2026