2026 ICD-10-CM Diagnosis Code T73.0XXSStarvation, sequela

ICD-10-CM Codes›S00–T88›T66-T78›T73

ICD-10-CM T73.0XXS
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

T73.0XXS is a billable ICD-10-CM diagnosis code for starvation, sequela. The 7th character S marks it as a sequela code, which reports a problem that remains after the original condition has resolved. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 922 through 923. The code is exempt from POA reporting. Coders also document this condition as anemia due to starvation. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Effect of other external causes, sequela.

Code Identity

ICD-10-CM Code
T73.0XXS
Billable Status
Yes — Valid for Submission
Code Describes
Starvation, sequela
Short Description
Starvation, sequela
Same as the full description in the CMS dataset.
Parent Code
T73.0
Starvation

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionT66-T78Other and unspecified effects of external causes
CategoryT73Effects of other deprivation
This CodeT73.0XXSStarvation, sequela

Present on Admission (POA)Billing

T73.0XXS is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Anemia due to starvation
  • Deprivation of food
  • Effects of hunger
  • Inanition due to lack of food
  • Nutrition deficiency due to insufficient food
  • Refeeding syndrome
  • Starvation
  • Starvation ketoacidosis
  • Starvation-related malnutrition

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Effects of other deprivation (T73). Use the following options for the applicable episode of care:

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

Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2026, published by CMS and the National Center for Health Statistics.

Clinical ClassificationClinical

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

CCSR INJ074
Effect of other external causes, sequela
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Starvation

    lengthy and continuous deprivation of food. (stedman, 25th ed)

  • Refeeding Syndrome

    a condition of metabolic imbalance that is caused by complications of initially feeding a severely malnourished patient too aggressively. usually occurring within the first 5 days of refeeding, this syndrome is characterized by water-electrolyte imbalance; glucose intolerance; cardiac arrhythmias; and diarrhea.

Patient EducationClinical

Malnutrition

Malnutrition means that your body isn't getting enough calories or the right balance of nutrients to stay healthy. This can happen if you don't get enough protein, carbohydrates, and fats, eat too much unhealthy food, or don't get the vitamins and minerals your body needs.

The full article covers:

  • What is malnutrition?
  • What are the types of malnutrition?
  • What causes malnutrition?
  • Who is at risk for developing malnutrition?
  • What are the symptoms of malnutrition?
  • How is malnutrition diagnosed?
  • What are the treatments for malnutrition?
  • Can malnutrition be prevented?

Read the full article at MedlinePlus

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

Convert T73.0XXS to ICD-9-CMHistory

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

ICD-9-CM
909.4 Late eff cert ext cause
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About T73.0XXSOverview

Is T73.0XXS (Starvation) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report starvation, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character S in T73.0XXS mean?

The final character S makes this a sequela code: it reports a lingering problem that remains after the starvation itself has resolved, not the original event.

What MS-DRG does T73.0XXS group to?

When starvation, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 922, 923, with relative weights from 1.0177 to 1.7494 depending on complications. Higher weights mean higher Medicare reimbursement.

Is T73.0XXS exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for starvation, sequela on inpatient claims.

What is the ICD-9 equivalent of T73.0XXS?

Under the General Equivalence Mappings, starvation, sequela converts to ICD-9-CM 909.4 (late eff cert ext cause). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.