Code Information

Diagnosis Code: 845.09

Short Description: Sprain of ankle NEC

Long Description: Other sprains and strains of ankle

Code Classification:

  • Injury and poisoning (800–999)
    • Sprains and strains of joints and adjacent muscles (840-848)
      • 845 Sprains and strains of ankle and foot
        • 845.09 Sprain of ankle NEC

Code Version: 2015 ICD-9-CM


  • Acute disruption of syndesmosis of ankle
  • Partial tear, ankle, lateral ligament
  • Peroneus longus rupture
  • Rupture of tendon of lower leg and ankle
  • Ruptured Achilles tendon - traumatic
  • Sprain of lateral ligament of ankle joint
  • Strain of Achilles tendon

References to Index of Diseases and Injuries

The code 845.09 has the following ICD-9-CM references to the Index of Diseases and Injuries
  • Laceration - see also Wound, open, by site
    • Achilles tendon 845.09
      • with open wound 892.2
    • tendon 848.9
      • Achilles 845.09
        • with open wound 892.2
  • Rupture, ruptured 553.9
    • tendon (traumatic) - see also Sprain, by site
      • Achilles 845.09
        • nontraumatic 727.67
      • ankle 845.09
        • nontraumatic 727.68
  • Sprain, strain (joint) (ligament) (muscle) (tendon) 848.9
    • Achilles tendon 845.09
    • talofibular 845.09

Crosswalk Information

The code 845.09 converts into the following ICD-10 code(s):
ICD-9 Code ICD-10 Code ICD-10 Description
845.09 Right Arrow S86.019A Strain of unspecified Achilles tendon, initial encounter
S93.499A Sprain of other ligament of unspecified ankle, init encntr
This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code ICD-9 Description
845.00 Sprain of ankle, unspecified site
845.01 Sprain of deltoid (ligament), ankle
845.02 Sprain of calcaneofibular (ligament) of ankle
845.03 Sprain of tibiofibular (ligament), distal of ankle
845.10 Sprain of foot, unspecified site
845.11 Sprain of tarsometatarsal (joint) (ligament) of foot
845.12 Sprain of metatarsophalangeal (joint) of foot
845.13 Sprain of interphalangeal (joint), toe
845.19 Other sprain of foot

This page was last updated on: 10/1/2014