2022 ICD-10-CM Code S91.309A
Unspecified open wound, unspecified foot, initial encounter
Code Classification
S91.309A is a billable diagnosis code used to specify a medical diagnosis of unspecified open wound, unspecified foot, initial encounter. The code S91.309A is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.
The ICD-10-CM code S91.309A might also be used to specify conditions or terms like foreign body in heel, fracture of cuboid, fracture of intermediate cuneiform, fracture of lateral cuneiform, fracture of medial cuneiform , fracture of navicular, etc.
S91.309A is an initial encounter code, includes a 7th character and should be used while the patient is receiving active treatment for a condition like unspecified open wound unspecified foot. According to ICD-10-CM Guidelines an "initial encounter" doesn't necessarily means "initial visit". The 7th character should be used when the patient is undergoing active treatment regardless if new or different providers saw the patient over the course of a treatment. The appropriate 7th character codes should also be used even if the patient delayed seeking treatment for a condition.
Unspecified diagnosis codes like S91.309A are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.
Coding Guidelines
The appropriate 7th character is to be added to each code from block Open wound of ankle, foot and toes (S91). Use the following options for the aplicable episode of care:
- A - initial encounter
- D - subsequent encounter
- S - sequela
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Foreign body in heel
- Fracture of cuboid
- Fracture of intermediate cuneiform
- Fracture of lateral cuneiform
- Fracture of medial cuneiform
- Fracture of navicular
- Glass in dorsum of foot
- Glass in foot
- Glass in heel
- Glass in sole of foot
- Gunshot wound of extremity
- Gunshot wound of foot
- Gunshot wound of lower limb
- Injury of deep plantar artery
- Injury of dorsalis pedis artery
- Multiple open wounds of foot
- Nail wound of dorsum of foot
- Nail wound of foot
- Open division foot ligament
- Open division ligament ankle and/or foot
- Open division of midtarsal joint ligament
- Open division tarsometatarsal ligament
- Open fracture dislocation of foot
- Open fracture dislocation of midtarsal joint
- Open fracture dislocation of subtalar joint
- Open fracture dislocation of tarsometatarsal joint
- Open fracture metatarsal base
- Open fracture metatarsal head
- Open fracture metatarsal neck
- Open fracture metatarsal shaft
- Open fracture metatarsal, multiple
- Open fracture of base of fifth metatarsal
- Open fracture of cuboid bone of foot
- Open fracture of cuneiform bone of foot
- Open fracture of fifth metatarsal bone
- Open fracture of first metatarsal bone
- Open fracture of foot
- Open fracture of fourth metatarsal bone
- Open fracture of intermediate cuneiform bone of foot
- Open fracture of lateral cuneiform bone of foot
- Open fracture of medial cuneiform bone of foot
- Open fracture of metaphysis of fifth metatarsal bone
- Open fracture of metaphysis of first metatarsal bone
- Open fracture of metaphysis of fourth metatarsal bone
- Open fracture of metaphysis of metatarsal bone
- Open fracture of metaphysis of second metatarsal bone
- Open fracture of metaphysis of third metatarsal bone
- Open fracture of navicular bone of foot
- Open fracture of second metatarsal bone
- Open fracture of tarsal AND metatarsal bones
- Open fracture of tarsal bone
- Open fracture of third metatarsal bone
- Open fracture subluxation of foot
- Open fracture subluxation of foot
- Open fracture subluxation of foot
- Open fracture subluxation of midtarsal joint
- Open fracture subluxation of subtalar joint
- Open fracture subluxation of tarsometatarsal joint
- Open injury, deep plantar artery
- Open injury, dorsalis pedis artery
- Open lateral dislocation of subtalar joint
- Open medial dislocation of subtalar joint
- Open tarsal fractures, multiple
- Open traumatic dislocation of tarsometatarsal joint
- Open traumatic dislocation of tarsometatarsal joint
- Open traumatic dislocation of tarsometatarsal joint
- Open traumatic dislocation, midtarsal joint
- Open traumatic dislocation, midtarsal joint
- Open traumatic dislocation, midtarsal joint
- Open traumatic dislocation, pantalar
- Open traumatic dislocation, subtalar joint
- Open traumatic dislocation, subtalar joint
- Open traumatic dislocation, subtalar joint
- Open traumatic subluxation of tarsometatarsal joint
- Open traumatic subluxation of tarsometatarsal joint
- Open traumatic subluxation, foot
- Open traumatic subluxation, midtarsal joint
- Open traumatic subluxation, midtarsal joint
- Open traumatic subluxation, pantalar
- Open traumatic subluxation, subtalar joint
- Open traumatic subluxation, subtalar joint
- Open wound foot, dorsum
- Open wound foot, plantar
- Open wound of foot
- Open wound of foot except toes with complication
- Open wound of foot except toes with tendon involvement
- Open wound of foot except toes without complication
- Open wound of foot with complication
- Open wound of foot, excluding toe
- Open wound of lower limb without complication
- Open wound, heel
- Traumatic arthropathy of talonavicular joint
- Traumatic dislocation of tarsometatarsal joint
- Traumatic dislocation of tarsometatarsal joint
- Traumatic dislocation of tarsometatarsal joint
Diagnostic Related Groups - MS-DRG Mapping
The ICD-10 code S91.309A is grouped in the following groups for version MS-DRG V39.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC). applicable from 10/01/2021 through 09/30/2022.
MS-DRG | MS-DRG Title | MCD | Relative Weight |
---|---|---|---|
604 | TRAUMA TO THE SKIN, SUBCUTANEOUS TISSUE AND BREAST WITH MCC | 09 | 1.4913 |
605 | TRAUMA TO THE SKIN, SUBCUTANEOUS TISSUE AND BREAST WITHOUT MCC | 09 | 0.9092 |
The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.
Convert S91.309A to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code S91.309A its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
- 892.0 - Open wound of foot (Approximate Flag)
Information for Patients
Foot Injuries and Disorders
Each of your feet has 26 bones, 33 joints, and more than 100 tendons, muscles, and ligaments. No wonder a lot of things can go wrong. Here are a few common problems:
- Bunions - hard, painful bumps on the big toe joint
- Corns and calluses - thickened skin from friction or pressure
- Plantar warts - warts on the soles of your feet
- Fallen arches - also called flat feet
Ill-fitting shoes often cause these problems. Aging and being overweight also increase your chances of having foot problems.
[Learn More in MedlinePlus]
Wounds and Injuries
An injury is damage to your body. It is a general term that refers to harm caused by accidents, falls, hits, weapons, and more. In the U.S., millions of people injure themselves every year. These injuries range from minor to life-threatening. Injuries can happen at work or play, indoors or outdoors, driving a car, or walking across the street.
Wounds are injuries that break the skin or other body tissues. They include cuts, scrapes, scratches, and punctured skin. They often happen because of an accident, but surgery, sutures, and stitches also cause wounds. Minor wounds usually aren't serious, but it is important to clean them. Serious and infected wounds may require first aid followed by a visit to your doctor. You should also seek attention if the wound is deep, you cannot close it yourself, you cannot stop the bleeding or get the dirt out, or it does not heal.
Other common types of injuries include
- Animal bites
- Bruises
- Burns
- Dislocations
- Electrical injuries
- Fractures (broken bones)
- Sprains and strains
[Learn More in MedlinePlus]
Related Codes
ICD Code | Description | Valid for Submission |
---|---|---|
S91 | Open wound of ankle, foot and toes | NON-BILLABLE CODE |
S91.0 | Open wound of ankle | NON-BILLABLE CODE |
S91.00 | Unspecified open wound of ankle | NON-BILLABLE CODE |
S91.001 | Unspecified open wound, right ankle | NON-BILLABLE CODE |
S91.001A | Unspecified open wound, right ankle, initial encounter | BILLABLE CODE |
S91.001D | Unspecified open wound, right ankle, subsequent encounter | BILLABLE CODE |
S91.001S | Unspecified open wound, right ankle, sequela | BILLABLE CODE |
S91.002 | Unspecified open wound, left ankle | NON-BILLABLE CODE |
S91.002A | Unspecified open wound, left ankle, initial encounter | BILLABLE CODE |
S91.002D | Unspecified open wound, left ankle, subsequent encounter | BILLABLE CODE |
S91.002S | Unspecified open wound, left ankle, sequela | BILLABLE CODE |
S91.009 | Unspecified open wound, unspecified ankle | NON-BILLABLE CODE |
S91.009A | Unspecified open wound, unspecified ankle, initial encounter | BILLABLE CODE |
S91.009D | Unspecified open wound, unspecified ankle, subsequent encounter | BILLABLE CODE |
S91.009S | Unspecified open wound, unspecified ankle, sequela | BILLABLE CODE |
S91.01 | Laceration without foreign body of ankle | NON-BILLABLE CODE |
S91.011 | Laceration without foreign body, right ankle | NON-BILLABLE CODE |
S91.011A | Laceration without foreign body, right ankle, initial encounter | BILLABLE CODE |
S91.011D | Laceration without foreign body, right ankle, subsequent encounter | BILLABLE CODE |
S91.011S | Laceration without foreign body, right ankle, sequela | BILLABLE CODE |
S91.012 | Laceration without foreign body, left ankle | NON-BILLABLE CODE |
S91.012A | Laceration without foreign body, left ankle, initial encounter | BILLABLE CODE |
S91.012D | Laceration without foreign body, left ankle, subsequent encounter | BILLABLE CODE |
S91.012S | Laceration without foreign body, left ankle, sequela | BILLABLE CODE |
S91.019 | Laceration without foreign body, unspecified ankle | NON-BILLABLE CODE |
S91.019A | Laceration without foreign body, unspecified ankle, initial encounter | BILLABLE CODE |
S91.019D | Laceration without foreign body, unspecified ankle, subsequent encounter | BILLABLE CODE |
S91.019S | Laceration without foreign body, unspecified ankle, sequela | BILLABLE CODE |
S91.02 | Laceration with foreign body of ankle | NON-BILLABLE CODE |
S91.021 | Laceration with foreign body, right ankle | NON-BILLABLE CODE |
S91.021A | Laceration with foreign body, right ankle, initial encounter | BILLABLE CODE |
S91.021D | Laceration with foreign body, right ankle, subsequent encounter | BILLABLE CODE |
S91.021S | Laceration with foreign body, right ankle, sequela | BILLABLE CODE |
S91.022 | Laceration with foreign body, left ankle | NON-BILLABLE CODE |
S91.022A | Laceration with foreign body, left ankle, initial encounter | BILLABLE CODE |
S91.022D | Laceration with foreign body, left ankle, subsequent encounter | BILLABLE CODE |
S91.022S | Laceration with foreign body, left ankle, sequela | BILLABLE CODE |
S91.029 | Laceration with foreign body, unspecified ankle | NON-BILLABLE CODE |
S91.029A | Laceration with foreign body, unspecified ankle, initial encounter | BILLABLE CODE |
S91.029D | Laceration with foreign body, unspecified ankle, subsequent encounter | BILLABLE CODE |
S91.029S | Laceration with foreign body, unspecified ankle, sequela | BILLABLE CODE |
S91.03 | Puncture wound without foreign body of ankle | NON-BILLABLE CODE |
S91.031 | Puncture wound without foreign body, right ankle | NON-BILLABLE CODE |
S91.031A | Puncture wound without foreign body, right ankle, initial encounter | BILLABLE CODE |
S91.031D | Puncture wound without foreign body, right ankle, subsequent encounter | BILLABLE CODE |
S91.031S | Puncture wound without foreign body, right ankle, sequela | BILLABLE CODE |
S91.032 | Puncture wound without foreign body, left ankle | NON-BILLABLE CODE |
S91.032A | Puncture wound without foreign body, left ankle, initial encounter | BILLABLE CODE |
S91.032D | Puncture wound without foreign body, left ankle, subsequent encounter | BILLABLE CODE |
S91.032S | Puncture wound without foreign body, left ankle, sequela | BILLABLE CODE |
S91.039 | Puncture wound without foreign body, unspecified ankle | NON-BILLABLE CODE |
Code History
- FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
- FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
- FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
- FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
- FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
- FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)