Valid for Submission
S20.161D is a billable diagnosis code used to specify a medical diagnosis of insect bite (nonvenomous) of breast, right breast, subsequent encounter. The code S20.161D is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code S20.161D might also be used to specify conditions or terms like injury of right breast, insect bite, nonvenomous, of breast, wound of right breast due to nonvenomous insect bite or wound of right half of chest wall due to nonvenomous insect bite. The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.
S20.161D is a subsequent encounter code, includes a 7th character and should be used after the patient has completed active treatment for a condition like insect bite (nonvenomous) of breast right breast. According to ICD-10-CM Guidelines a "subsequent encounter" occurs when the patient is receiving routine care for the condition during the healing or recovery phase of treatment. Subsequent diagnosis codes are appropriate during the recovery phase, no matter how many times the patient has seen the provider for this condition. If the provider needs to adjust the patient's care plan due to a setback or other complication, the encounter becomes active again.
The appropriate 7th character is to be added to each code from block Superficial injury of thorax (S20). Use the following options for the aplicable episode of care:
- A - initial encounter
- D - subsequent encounter
- S - sequela
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Injury of right breast
- Insect bite, nonvenomous, of breast
- Wound of right breast due to nonvenomous insect bite
- Wound of right half of chest wall due to nonvenomous insect bite
Diagnostic Related Groups - MS-DRG Mapping
Present on Admission (POA)
Convert S20.161D to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code S20.161D 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.
Information for Patients
Insect Bites and Stings
Also called: Bug bites
Most insect bites are harmless, though they sometimes cause discomfort. Bee, wasp, and hornet stings and fire ant bites usually hurt. Mosquito and flea bites usually itch. Insects can also spread diseases. In the United States, some mosquitoes spread West Nile virus. Travelers outside the United States may be at risk for malaria and other infections.
To prevent insect bites and their complications
- Don't bother insects
- Use insect repellant
- Wear protective clothing
- Be careful when you eat outside because food attracts insects
- If you know you have severe allergic reactions to insect bites and stings (such as anaphylaxis), carry an emergency epinephrine kit
- Anaphylaxis (Medical Encyclopedia)
- Bee poison (Medical Encyclopedia)
- Fire ants (Medical Encyclopedia)
- Fleas (Medical Encyclopedia)
- Insect bites and stings (Medical Encyclopedia)
- Wasp sting (Medical Encyclopedia)
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