Other ICD-10 codes

M01.X0 identifies a direct infection of a joint — site unspecified — occurring as a manifestation of an underlying infectious or parasitic disease that is classified under a different ICD-10-CM code elsewhere in the system.

Rheumatoid lung disease occurring in a patient with seropositive rheumatoid arthritis (RF-positive), where the specific joint site is not documented or identified.

Rheumatoid arthritis confirmed by positive rheumatoid factor, affecting a site not individually enumerated in the M05.7 subcategory, with no documented organ or systemic involvement.

Rheumatoid arthritis with a confirmed positive rheumatoid factor affecting a site not captured by the anatomically specific M05.8x subcodes — such as the temporomandibular joint, cricoarytenoid joint, or other atypical locations.

Seronegative rheumatoid arthritis affecting a joint or anatomical site that doesn't fit any of the named site subcategories under M06.0 — not shoulder, elbow, wrist, hand, hip, knee, ankle/foot, vertebrae, or multiple sites.

Other specified rheumatoid arthritis affecting a site that does not map to any of the named anatomical locations in the M06.8 subcategory — used when the involved joint or structure is documented but falls outside shoulder, elbow, wrist, hand, hip, knee, ankle/foot, vertebrae, or multiple sites.

Juvenile rheumatoid arthritis (unspecified type, with or without rheumatoid factor) affecting a documented anatomical site that does not match any of the other specific site subcode options in the M08.0 family.

Juvenile rheumatoid arthritis with systemic onset affecting a documented but anatomically atypical joint site not captured by the standard laterality-based subcodes in the M08.2x series.

Pauciarticular juvenile rheumatoid arthritis affecting an anatomical site not captured by any other specific site code in the M08.4 subcategory — used when the affected joint is documented but doesn't map to the standard laterality options.

M08.88 classifies other juvenile arthritis affecting a site that falls outside the named joint locations in the M08.8x series — such as the temporomandibular joint, sacroiliac joint, or another anatomically distinct site not captured by shoulder through ankle/foot codes.

Juvenile arthritis, type unspecified, affecting a site that does not correspond to any standard anatomical site listed elsewhere in the M08.9x subcode set — such as the temporomandibular joint, sternoclavicular joint, or sacroiliac joint.

Chronic postrheumatic arthropathy (Jaccoud type) affecting a joint site not captured by the more specific M12.0x subcodes — used when the involved joint falls outside the standard lateralized options in the M12.0 series.

Pigmented villonodular synovitis (PVNS) occurring at a joint site not individually enumerated in the M12.2 subcategory — specifically includes vertebral involvement and any other joint outside the shoulder, elbow, wrist, hand, hip, knee, and ankle/foot.

Palindromic rheumatism affecting a specified joint site that does not correspond to any other individually enumerated site in the M12.3 subcategory — most notably used for vertebral involvement per the ICD-10-CM tabular note.

Recurrent, self-limiting joint effusion at an anatomical site not captured by any laterality-specific M12.4x code — used when the affected joint falls outside the named sites (shoulder, elbow, wrist, hand, hip, knee, ankle/foot) in the M12.4 subcategory.

Traumatic arthropathy at a site not captured by any other specific M12.5x subcategory — per the ICD-10-CM Tabular, this includes vertebral traumatic arthropathy as the primary 'Applicable To' example.

M12.88 captures a specific arthropathy that is not classifiable elsewhere in the ICD-10-CM system and that affects a joint site other than those with dedicated site-specific codes in the M12.8x subcategory.

Inflammatory arthritis affecting an anatomical site not captured by any other specific joint-level code in the M13.8 subcategory — used when the affected joint falls outside the standard lateralized site list (shoulder through ankle/foot).

Primary osteoarthritis affecting a joint site that does not have its own dedicated ICD-10-CM code — a residual category within M19.0 for idiopathic, non-traumatic, non-secondary degenerative joint disease at locations such as the temporomandibular joint, sacroiliac joint, or acromioclavicular joint.

Post-traumatic osteoarthritis occurring at a joint site that does not have a more specific code in the M19.1x subcategory — such as the elbow, wrist, or other non-knee, non-hip, non-first-CMC joint.

Secondary osteoarthritis at a joint site that is not captured by any other specific M19 subcategory — a catch-all for secondary OA affecting joints outside the shoulder, elbow, wrist, hand, hip, knee, ankle, and foot.

M24.08 identifies the presence of a loose body (a detached fragment of bone, cartilage, or other tissue) within a joint at a site not captured by any other specific M24.0x code in the classification — meaning a joint other than the shoulder, elbow, wrist, hand, hip, knee, ankle, or toe joints.

M24.19 captures articular cartilage disorders at joints that don't have a dedicated site-specific code within the M24.1 subcategory — a true 'other specified site' catch-all for non-standard anatomical locations.

Chronic or non-traumatic ligamentous pathology occurring at a joint site not captured by any other specific M24.2x subcategory — a true residual bucket for documented ligament disorders that lack a dedicated laterality-specific code.

Pathological dislocation of a joint not covered by more specific M24.3 subcategories — used when the affected joint falls outside the spine, shoulder, elbow, wrist, finger, hip, knee, ankle, foot, or toe groupings already enumerated in M24.3.

Recurrent dislocation or subluxation of a joint that does not map to any of the more specifically enumerated joint sites in the M24.4x subcategory — a true catch-all for joints such as the sternoclavicular, acromioclavicular, patellofemoral (when not captured elsewhere), or small joints of the hand and foot that lack a dedicated laterality code under M24.4.

M24.59 captures joint contracture at a site that doesn't map to any of the eight named-site subcategories in the M24.5x series — use it when the affected joint is documented but falls outside shoulder, elbow, wrist, hand, hip, knee, or ankle/foot.

Ankylosis of a joint not captured by any other site-specific code in the M24.6x series — meaning fibrous or osseous fusion at a location outside shoulder, elbow, wrist, hand, hip, knee, ankle, or foot.

M24.80 captures joint derangements that are specific in type but documented without identifying which joint is involved — a residual category for named joint pathology that doesn't fit a more precise site-specific code.

M24.89 classifies a specific, named joint derangement occurring at a joint that is neither covered by a more precise M24.8x subcode nor falling under any other ICD-10-CM category — a true residual bucket for unusual or lesser-coded joints.

Blood accumulation within a joint cavity at a site not covered by the more specific M25.0x subcodes — most notably the vertebral joints, which are explicitly listed as an applicable site under this code.

A flail joint at a site not covered by any other specific M25.2x subcategory — meaning the joint has lost all functional stability and moves passively beyond its normal range in every plane.

Joint instability affecting a joint that does not have its own dedicated laterality-specific ICD-10-CM instability code — a true 'catch-all' within the M25.3 instability family.

Joint effusion occurring at a site not captured by any of the anatomically specific M25.4x subcodes — most notably spinal facet joints and the pelvic region.

M25.59 captures joint pain localized to a specific joint that falls outside the individually enumerated joints in the M25.5x subcode set — such as the sacroiliac joint, acromioclavicular joint, or sternoclavicular joint — where a more precise laterality-specific code does not exist.

M25.69 captures joint stiffness — reduced or painful limitation of motion without a more specific structural cause — in a joint that doesn't fit any laterality-specific subcategory within M25.6 or has not been classified elsewhere.

M26.00 identifies a major anomaly of jaw size that has not been further specified as affecting the maxilla or mandible, and does not indicate whether the anomaly involves hyperplasia, hypoplasia, macrogenia, microgenia, or excessive tuberosity.

Abnormal overgrowth of the maxillary bone resulting in a disproportionately large upper jaw relative to the mandible or cranial base.

M26.02 identifies underdevelopment of the maxilla (upper jaw) as a major anomaly of jaw size, classified under dentofacial anomalies in ICD-10-CM Chapter 13.

Overgrowth of the mandible (lower jaw) classified as a major anomaly of jaw size, reported under the dentofacial anomalies section of ICD-10-CM.

Underdevelopment of the mandible (lower jaw) resulting in a smaller-than-normal jaw structure, classified as a major anomaly of jaw size under the dentofacial anomalies category.

M26.05 identifies macrogenia — abnormal enlargement of the chin (the bony symphyseal region of the mandible) classified as a major anomaly of jaw size under the dentofacial anomalies block.

M26.06 identifies microgenia — an abnormally small or underdeveloped chin (symphysis menti region of the mandible) classified as a major anomaly of jaw size under the dentofacial anomalies category.

M26.07 identifies an abnormal overgrowth of the maxillary tuberosity — the bony prominence at the posterior end of the upper jaw — classified as a dentofacial anomaly under the musculoskeletal chapter.

M26.09 captures jaw size anomalies that are documented and clinically specified but do not match any of the individually named codes within the M26.0 category — such as agenesis of the jaw, jaw hyperplasia not classified as maxillary or mandibular, or other discrete size deformities without a dedicated subcategory.

M26.10 identifies an anomaly in the spatial relationship between the jaw and the cranial base where the specific nature of the anomaly has not been documented or determined.

M26.11 classifies documented asymmetry of the maxilla as an anomaly of the jaw-cranial base relationship, distinct from generalized jaw size anomalies or mandibular asymmetry.

M26.12 identifies jaw asymmetry that is not attributable to maxillary asymmetry (M26.11), capturing mandibular laterognathia and other non-maxillary imbalances in jaw-cranial base relationship.

M26.19 captures dentofacial anomalies involving an abnormal spatial relationship between the jaw and the cranial base that don't map to a more specific code in the M26.1x subcategory — including prognathism and retrognathism of either the mandible or maxilla when no other M26.1x code applies.

M26.20 captures a dental arch relationship anomaly that has been identified clinically but not further characterized — use it only when documentation lacks the specificity required by any sibling code under M26.2.

M26.23 identifies an excessive horizontal overlap of the teeth — clinically termed overjet — where the upper incisors protrude too far horizontally beyond the lower incisors. This is the coding equivalent of what is colloquially called a 'horizontal overbite' or Angle Class II, Division 1 malocclusion.

M26.24 classifies reverse articulation — a dental arch relationship anomaly in which the normal occlusal relationship is reversed, including anterior and posterior crossbite.

M26.25 identifies a dentofacial anomaly in which the vertical or horizontal distance between the maxillary and mandibular dental arches deviates from accepted norms, affecting occlusal relationships and jaw function.

M26.29 captures dental arch relationship anomalies that don't fit any more specific subcategory under M26.2 — including midline deviation of the dental arch, excessive deep/horizontal/vertical overbite, and posterior lingual occlusion of mandibular teeth.

M26.30 identifies an anomaly of tooth position affecting a fully erupted tooth or teeth when the specific type of positional abnormality is not documented or cannot be further specified.

Dental crowding in which fully erupted permanent teeth lack adequate arch space, causing overlapping, displacement, or malalignment of teeth that have already completely emerged through the gingiva.

Abnormal excess space between fully erupted permanent teeth, including diastema (gap between teeth) not otherwise specified.

M26.33 identifies horizontal displacement of a fully erupted tooth or teeth — including tipped teeth and tipping of fully erupted teeth — within the dentofacial anomalies classification.

M26.34 identifies vertical displacement of a fully erupted tooth or teeth — encompassing extrusion (supraeruption) away from the alveolar bone and infraeruption toward it — classified as a dentofacial anomaly of tooth position.

M26.35 identifies an anomaly of tooth position in which a fully erupted tooth or multiple fully erupted teeth are axially rotated out of their normal alignment within the dental arch.