2026 ICD-10-CM Diagnosis Code S86.091DOther specified injury of right Achilles tendon, subsequent encounter
S86.091D is a billable ICD-10-CM diagnosis code for other specified injury of right Achilles tendon, 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 injury of right Achilles tendon. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Injury to nerves, muscles and tendons, subsequent encounter.
Code Identity
Code Classification
Present on Admission (POA)Billing
S86.091D 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.
- Injury of right Achilles tendon
- Rupture of Achilles tendon
- Rupture of right Achilles tendon
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Injury of muscle, fascia and tendon at lower leg level (S86). 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
Heel Injuries and Disorders
Heel problems are common and can be painful. Often, they result from too much stress on your heel bone and the tissues that surround it. That stress can come from:
Read the full article at MedlinePlus
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Convert S86.091D to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S86.091DOverview
Is S86.091D (Other specified injury of right Achilles tendon) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other specified injury of right Achilles tendon, subsequent encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character D in S86.091D mean?
The final character D marks a subsequent encounter: use it for routine care while the other specified injury of right Achilles tendon is healing, after active treatment has ended.
What MS-DRG does S86.091D group to?
When other specified injury of right Achilles tendon, 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 S86.091D 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 other specified injury of right Achilles tendon, subsequent encounter on inpatient claims.
What is the ICD-9 equivalent of S86.091D?
Under the General Equivalence Mappings, other specified injury of right Achilles tendon, 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.
