2026 ICD-10-CM Diagnosis Code S37.002DUnspecified injury of left kidney, subsequent encounter
S37.002D is a billable ICD-10-CM diagnosis code for unspecified injury of left kidney, subsequent encounter. The 7th character D marks it as a subsequent encounter code, used during routine care in the healing or recovery phase. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 949 through 950. The code is exempt from POA reporting. Coders also document this condition as left kidney traumatic injury. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Internal organ injury, subsequent encounter.
Code Identity
Code Classification
Present on Admission (POA)Billing
S37.002D 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.
- Left kidney traumatic injury
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Injury of urinary and pelvic organs (S37). 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.
Patient EducationClinical
Kidney Diseases
You have two kidneys, each about the size of your fist. They are near the middle of your back, just below the rib cage. Inside each kidney there are about a million tiny structures called nephrons. They filter your blood. They remove wastes and extra water, which become urine. The urine flows through tubes called ureters.
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Convert S37.002D to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S37.002DOverview
Is S37.002D (Unspecified injury of left kidney) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report unspecified injury of left kidney, subsequent encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character D in S37.002D mean?
The final character D marks a subsequent encounter: use it for routine care while the unspecified injury of left kidney is healing, after active treatment has ended.
What MS-DRG does S37.002D group to?
When unspecified injury of left kidney, subsequent encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 949, 950, with relative weights from 0.6277 to 1.1897 depending on complications. Higher weights mean higher Medicare reimbursement.
Is S37.002D 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 unspecified injury of left kidney, subsequent encounter on inpatient claims.
What is the ICD-9 equivalent of S37.002D?
Under the General Equivalence Mappings, unspecified injury of left kidney, subsequent encounter converts to ICD-9-CM V58.89 (other specfied aftercare). 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.
