S31.822A Laceration with foreign body of left buttock, initial encounter

ICD-10-CM Diagnosis Code S31.822A: Laceration with foreign body of left buttock, initial encounter

ICD-10-CM code S31.822A identifies an injury involving a laceration with a foreign body in the left buttock during an initial encounter. The terminology record classifies this concept as an injury or poisoning. This reference page synthesizes public-source excerpts to explain the code's meaning, hierarchy, and related distinctions without providing personal medical advice. 1 4

Plain-language overview

A foreign body is something stuck inside a person that is not supposed to be there, and a foreign body may result from an injury to almost any part of the body. 5

What this code represents

The official preferred name for S31.822A is laceration with foreign body of left buttock, initial encounter, and the concept carries the semantic type of injury or poisoning. 1 4

Code S31.822A has a parent concept of S31.822, which is the terminology record for a laceration with foreign body of left buttock without the encounter specification. 1

Coding details

The S31.822A terminology record is active for the 2026 version of ICD-10-CM and has narrower concepts within the terminology hierarchy, with an abbreviation of laceration with foreign body of left buttock, init encntr. 1

The S31.822A code is distinct from S31.822D, which represents a laceration with foreign body of left buttock for a subsequent encounter rather than the initial encounter. 3

Documentation considerations

The S31.822A terminology record specifies a left buttock laceration with a foreign body, while a separate listing identifies S31.811D as a laceration without foreign body of right buttock, subsequent encounter. 1 2

Coverage and utilization context

Code S31.822A appears in a billing and coding article for wound and ulcer care alongside the subsequent encounter code S31.822D, but the article text provided does not state coverage rules for this code. 3

What the sources add

The National Cancer Institute terminology record and the EVS Explore portal both establish the preferred name and injury or poisoning semantic type for S31.822A, while the wound care article provides operational context by listing related subsequent encounter codes. 1 4 3

A general concept source explains that foreign bodies occur when an object becomes stuck inside the body, adding plain-language context to the injury concept represented by the S31.822A terminology record. 5 1

Sources

1. ICD-10-CM S31.822A terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Article - Billing and Coding: Medicare Preventive Coverage for Certain Vaccines (A54767) — cms.gov; accessed 2026-07-27.
3. Article - Billing and Coding: Wound and Ulcer Care (A58565) — cms.gov; accessed 2026-07-27.
4. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-27.
5. S31.822D — Laceration with foreign body of left buttock, subsequent encounter | ICD-10 Code · Eleplan — eleplan.com; accessed 2026-07-27.